{"id":7,"date":"2024-04-04T07:30:14","date_gmt":"2024-04-04T04:30:14","guid":{"rendered":"https:\/\/sisu.ut.ee\/huvitavkeemia\/22-mool-mass-ja-molaarmass\/"},"modified":"2025-02-12T22:46:46","modified_gmt":"2025-02-12T20:46:46","slug":"22-mool-mass-ja-molaarmass","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/huvitavkeemia\/22-mool-mass-ja-molaarmass\/","title":{"rendered":"2.2. Mool, mass ja molaarmass"},"content":{"rendered":"<p style=\"margin-top:12.0pt;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">Mool on k\u00fcll keemikute seas v\u00e4ga laialt kasutatav \u00fchik, aga \u00fchtegi m\u00f5\u00f5teriista ei saa kasutada otseselt moolide m\u00f5\u00f5tmiseks. Samuti ei saa osta tavap\u00e4raselt lahtiseid komme\u00a0moolides, vaid ikka grammides. Selleks, et minna ainehulgalt\u00a0\u00fcle massile, kasutatakse molaarmassi. Mis on mooli ja massi seos ning kuidas leida molaarmassi ning molaarmassi kaudu aine massi, saad vaadata j\u00e4rgmisest videost.<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin-top:12.0pt;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm\">\n\t<\/p><div class=\"ratio ratio-16x9 mb-3\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--16x9\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n\n<h6 style=\"margin: 12pt 0cm\">\n\t<span style=\"line-height:150%\">Allikas:\u00a0<\/span><a data-url=\"https:\/\/youtu.be\/g1s_JY9rcJs\" href=\"https:\/\/youtu.be\/g1s_JY9rcJs\" target=\"_blank\" title=\"\" rel=\"noopener\">https:\/\/youtu.be\/g1s_JY9rcJs<\/a><br>\n<\/h6>\n<h5>\n\tMolaarmass on \u00fche mooli aineosakeste mass.\u00a0<br>\n<\/h5>\n<p style=\"margin-top:12.0pt;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">Molaarmassi t\u00e4hiseks on <i>M<\/i> ning keemias k\u00f5ige kasutatavamaks molaarmassi \u00fchikuks g\/mol. Selleks, et leida konkreetse \u00fchendi molaarmassi, tuleb liita aine koostises olevate elementide \u00fcmardatud aatommassid, <\/span><\/span><\/span><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">kusjuures tuleb arvestada ka aatomite arve\u00a0keemilises valemis.<\/span><\/span><\/span><\/span>\n<\/p>\n<h4 style=\"margin: 12pt 0cm\">\n\tN\u00e4ide 1. Arvuta vee molaarmass.<br>\n<\/h4>\n<p style=\"margin-top:12.0pt;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm\">\n\t<img loading=\"lazy\" decoding=\"async\" width=\"484\" height=\"286\" class=\"alignnone wp-image-86\" style=\"width:300px;height:177px;float:right\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/524\/screenshot_2022-02-07_at_15.07.16.png\" title=\"screenshot_2022-02-07_at_15.07.16.png\" alt=\"pilt\" srcset=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/524\/screenshot_2022-02-07_at_15.07.16.png 484w, https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/524\/screenshot_2022-02-07_at_15.07.16-300x177.png 300w\" sizes=\"auto, (max-width: 484px) 100vw, 484px\"><span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">Vee keemiline valem on H<sub>2<\/sub>O. Molaarmassi leidmiseks kasutame perioodilisustabelis toodud aatommasse, kuid \u00fcmardame need t\u00e4isarvuks. Vesiniku aatommass on 1.008 ehk \u00fcmardatuna t\u00e4isarvuks 1 ning hapniku aatommass on 15.999 ehk \u00fcmardatuna t\u00e4isarvuks 16. Kuna vee molekulis on 2 vesiniku aatomit,\u00a0<\/span><\/span><\/span><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">tuleb seda ka arvutuses arvestada ning vee molaarmassi leidmiseks on arvutusk\u00e4ik j\u00e4rgmine:<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin: 12pt 0cm 12pt 40px\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">M(H<sub>2<\/sub>O) = 2 <\/span><\/span><span style=\"background:white\"><span style=\"line-height:150%\">$\\times $<\/span><\/span><span style=\"line-height:150%\"><span style=\",serif\">1 + 16 = 18 g\/mol<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin-top:12.0pt;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">Allpool on toodud\u00a0 m\u00f5ne \u00fchendi\u00a0molaarmassid koos arvutusk\u00e4iguga. Kontrolli, kas saad samad tulemused.<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin: 12pt 0cm 12pt 40px\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">M(K) = 39 g\/mol<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin: 12pt 0cm 12pt 40px\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">M(Al<sub>2<\/sub>O<sub>3<\/sub>) = 2 <\/span><\/span><span style=\"background:white\"><span style=\"line-height:150%\">$\\times $<\/span><\/span><span style=\"line-height:150%\"><span style=\",serif\"> 27 + 3 <\/span><\/span><span style=\"background:white\"><span style=\"line-height:150%\">$\\times $<\/span><\/span><span style=\"line-height:150%\"><span style=\",serif\">16 = 102 g\/mol<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin: 12pt 0cm 12pt 40px\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">M(H<sub>2<\/sub>SO<sub>3<\/sub>) = 2 <\/span><\/span><span style=\"background:white\"><span style=\"line-height:150%\">$\\times $<\/span><\/span><span style=\"line-height:150%\"><span style=\",serif\"> 1 + 32 + 3 <\/span><\/span><span style=\"background:white\"><span style=\"line-height:150%\">$\\times $<\/span><\/span><span style=\"line-height:150%\"><span style=\",serif\"> 16 = 82 g\/mol<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin: 12pt 0cm 12pt 40px\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">M(NaCl) = 23 + 35,5 = 58,5 g\/mol<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin-top:12.0pt;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\">Nagu viimasest n\u00e4itest selgub, on aatommasside \u00fcmardamisel erandeid. J\u00e4ta meelde, et kloori aatommassi v\u00e4\u00e4rtus on 35,5 ning vase oma 63,5 g\/mol.<\/span><\/span><\/span><\/span>\n<\/p>\n<p style=\"margin-top:12.0pt;margin-right:0cm;margin-bottom:12.0pt;margin-left:0cm\">\n\t<span style=\"line-height:150%\"><span lang=\"et\"><span style=\"line-height:150%\"><span style=\",serif\"><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69d5890d66b85-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69d5890d66b85-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69d5890d66b85-collapse\">\u00dclesanne 1<\/button>\n        <\/h2>\n        <div id=\"accordion-69d5890d66b85-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69d5890d66b85-heading\">\n            <div class=\"accordion-body\">\n\n<p>\n\tVali \u00f5ige molaarmass.<\/p>\n\n\n<div class=\"h5p-iframe-wrapper\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--fixed\" style=\"height: 366px;\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n\n\n<p><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\"><\/span><\/span><\/span><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\"><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69d5890d66ba1-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69d5890d66ba1-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69d5890d66ba1-collapse\">\u00dclesande 1 lahendused<\/button>\n        <\/h2>\n        <div id=\"accordion-69d5890d66ba1-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69d5890d66ba1-heading\">\n            <div class=\"accordion-body\">\n<p style=\"list-style-type: none;\">1.1 Liitiumh\u00fcdroksiid: 24 g\/mol<\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">Lahendus: M(LiOH) = 7 + 16 + 1 = 24 (g\/mol)<\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">\n<\/p><p style=\"list-style-type: none;\">1.2 Dil\u00e4mmastikpentaoksiid: 108 g\/mol<\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">Lahendus: M(N<sub><span style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub>O<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">5<\/span><\/span><\/span><\/sub>) = 2 \u00d7 14 + 5 \u00d7 16 = 108 (g\/mol)<\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">\n<\/p><p style=\"list-style-type: none;\">1.3\u00a0<span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">Naatriumsulfaat: 142 g\/mol<\/span><\/span><\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">Lahendus: <span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">M(Na<\/span><\/span><sub><span style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub>SO<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">4<\/span><\/span><\/span><\/sub>) = 2 \u00d7 23 + 32 + 4 \u00d7 16 = 142 (g\/mol)<\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">\n<\/p><p style=\"list-style-type: none;\">1.4\u00a0<span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">Alumiinium(III)sulfaat: 342 g\/mol<\/span><\/span><\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">Lahendus: <span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">M[Al<\/span><\/span><sub><span style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub><span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">(SO<\/span><\/span><sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">4<\/span><\/span><\/span><\/sub><span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">)<\/span><\/span><sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub><span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">]<\/span><\/span><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\"> = <\/span><\/span>2 \u00d7 27 + 3 \u00d7 (32 + 4 \u00d7 16) = <span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">342 (g\/mol)<\/span><\/span><\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">\n<\/p><p style=\"list-style-type: none;\">1.5\u00a0<span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">Raud(III)karbonaat: 292 g\/mol<\/span><\/span><\/p>\n<p style=\"list-style-type: none; margin-left: 40px;\">Lahendus: <span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">M[<\/span><\/span><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">Fe<\/span><\/span><sub><span style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub><span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">(<\/span><\/span><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">C<\/span><\/span><span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">O<\/span><\/span><sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub><span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">)<\/span><\/span><sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub><span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">]<\/span><\/span><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\"> = <\/span><\/span>2 \u00d7 56 + 3 \u00d7 (12 + 3 \u00d7 16) = <span style=\"border: nonewindowtext1.0pt; background: white; padding: 0cm;\"><span style=\"color: black;\">292 (g\/mol)<\/span><\/span><\/p>\n<p><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\"><\/span><\/span><\/span><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div><\/span><\/span><\/span><\/p>\n<h5><span style=\"line-height: normal;\"><span lang=\"et\" style=\"color: black;\">Molaarmassi seos ainehulgaga:<\/span><\/span><br>$n=\\frac{m}{M}$<br><span style=\"line-height: normal;\"><span lang=\"et\" style=\"color: black;\">n \u2013 ainehulk (\u00fchik mol)<\/span><\/span><br><span style=\"line-height: normal;\"><span lang=\"et\" style=\"color: black;\">m \u2013 aine mass (\u00fchik g)<\/span><\/span><br><span style=\"line-height: normal;\"><span lang=\"et\" style=\"color: black;\">M \u2013 molaarmass (\u00fchik g\/mol)<\/span><\/span><\/h5>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\">Molaarmassi kasutades on v\u00f5imalik arvutada aine hulka v\u00f5i massi.\u00a0<span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Ainehulk on avaldatav kui<\/span><\/span><\/span>\u00a0 $n=\\frac{m}{M}$,<\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">kus <i>n<\/i> t\u00e4histab ainehulka (\u00fchik mool, l\u00fchend mol), <i>m<\/i> aine massi (\u00fchik gramm) ning M on molaarmass (\u00fchik g\/mol). <\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Arvutus\u00fclesannete lahendamise k\u00e4iguga oled ilmselt juba tuttav, kuid kordame selle \u00fcle.<\/span><\/span><\/span><\/p>\n<p>Arvutus\u00fclesannete lihtsamaks lahendamiseks v\u00f5id eeskujuks v\u00f5tta j\u00e4rgnevad sammud:<\/p>\n<ol>\n<li>Loe \u00fclesande tekst m\u00f5ttega l\u00e4bi.<\/li>\n<li>Jooni tekstis alla k\u00f5ik arvud.<\/li>\n<li>Omista arvule kindel f\u00fc\u00fcsikaline suurus. Seda on lihtne teha n\u00e4iteks \u00fchiku alusel.<\/li>\n<li>Kirjuta v\u00e4lja andmed ning otsitav suurus.<\/li>\n<li>Kirjuta v\u00e4lja valemid ning kui vaja, avalda valemist otsitav suurus.<\/li>\n<li>Asenda valemitesse arvud ning arvuta.<\/li>\n<\/ol>\n<p>Ole valmis, et m\u00f5nikord tuleb \u00fchikuid teisendada.<\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Teeme koos l\u00e4bi 2 \u00fclesannet.<\/span><\/span><\/span><\/p>\n<h2>N\u00e4idis\u00fclesanne 1. Ainehulga arvutamine<\/h2>\n<table class=\"table table-hover\" style=\"width: 100%;\" border=\"0\" cellspacing=\"1\" cellpadding=\"1\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">1. Loe \u00fclesande tekst m\u00f5ttega l\u00e4bi.<\/span><\/span><\/span><\/td>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Mitu mooli on 9,3 grammis naatriumoksiidis?<\/span><\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">2. Jooni alla k\u00f5ik arvud, mis on tekstis.<\/span><\/span><\/span><\/td>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Mitu mooli on <u>9,3<\/u> grammis naatriumoksiidis?<\/span><\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">3. Omista arvule kindel f\u00fc\u00fcsikaline suurus.<\/span><\/span><\/span><\/p>\n<\/td>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">9,3 grammi n\u00e4itab aine massi.<\/span><\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">4. Kirjuta v\u00e4lja andmed.<\/span><\/span><\/span><\/td>\n<td>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><i><span lang=\"et\"><span style=\"line-height: 150%;\">m<\/span><\/span><\/i><span lang=\"et\"><span style=\"line-height: 150%;\"> = 9,3 g<\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Samuti on hetkel teada, et aineks on naatriumoksiid, mille valem on Na<sub>2<\/sub>O. Igale ainele, mille valemit sa tead, saab leida molaarmassi.<\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><i><span lang=\"et\"><span style=\"line-height: 150%;\">M<\/span><\/span><\/i><span lang=\"et\"><span style=\"line-height: 150%;\">(Na<sub>2<\/sub>O) = 2 <\/span><span style=\"background: white;\"><span style=\"line-height: 150%;\">$\\times $<\/span><\/span><span style=\"line-height: 150%;\"> 23 + 16 = 62 g\/mol<\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Otsitav suurus on hetkel moolide arv, j\u00e4relikult <i>n<\/i> = ?<\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">5. Kirjuta v\u00e4lja valemid.<\/span><\/span><\/span><\/td>\n<td>\n<p>$n=\\frac{m}{M}$<\/p>\n<p><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Kuna antud juhul on vajalik ainehulk, siis valemist m\u00f5nda teist suurust avaldama ei pea.<\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">6. Asenda arvud ja arvuta.<\/span><\/span><\/span><\/td>\n<td>$n=\\frac{m}{M}=\\frac{9,3 g}{62 g\/mol}=0,15 mol$<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69d5890d66baa-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69d5890d66baa-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69d5890d66baa-collapse\">\u00dclesanne 2<\/button>\n        <\/h2>\n        <div id=\"accordion-69d5890d66baa-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69d5890d66baa-heading\">\n            <div class=\"accordion-body\">\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\">Arvuta ainehulk.<\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\">\n\n\n<\/p><div class=\"h5p-iframe-wrapper\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--fixed\" style=\"height: 366px;\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n\n\n<p><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69d5890d66bb1-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69d5890d66bb1-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69d5890d66bb1-collapse\">\u00dclesande 2 lahendused<\/button>\n        <\/h2>\n        <div id=\"accordion-69d5890d66bb1-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69d5890d66bb1-heading\">\n            <div class=\"accordion-body\">\n<p>2.1 Mitu mooli on 3,12 grammi alumiiniumh\u00fcdroksiidi? 0,04 mol<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: 3,12 grammi n\u00e4itab alumiiniumh\u00fcdroksiidi massi <i>m<\/i>. Alumiiniumh\u00fcdroksiidi valem on Al(OH)<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>, leiame sellele molaarmassi.<\/p>\n<p style=\"margin-left: 80px;\">M[Al(OH)<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>] = 27 + 3(16 + 1) = 78 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Otsitav suurus on moolide arv <i>n<\/i>.<\/p>\n<p style=\"margin-left: 80px;\"><span class=\"math-tex\">$x = {m \\over M} = {3.12g \\over78 g\/mol} = 0.04mol$<\/span><\/p>\n<p>2.2. Mitu mooli on 0,5 kg v\u00e4\u00e4veltrioksiidi? 6,25 mol<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: 0,5 kg n\u00e4itab v\u00e4\u00e4veltrioksiidi massi <i>m<\/i>. Teisendame selle grammideks.<\/p>\n<p style=\"margin-left: 80px;\">0,5 kg = 500 g<\/p>\n<p style=\"margin-left: 40px;\">V\u00e4\u00e4veltrioksiidi valem on SO<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>, leiame sellele molaarmassi.<\/p>\n<p style=\"margin-left: 80px;\">M(SO<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>) = 32 + 3 \u00d7 16 = 80 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Otsitav suurus on moolide arv <i>n<\/i>.<\/p>\n<p style=\"margin-left: 80px;\"><span class=\"math-tex\">$x = {m \\over M} = {500g \\over80 g\/mol} = 6.25mol$<\/span><\/p>\n<p>2.3. Mitu mooli on 800 grammi raud(III)h\u00fcdroksiidi? 7,48 mol<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: 800 g n\u00e4itab raud(III)h\u00fcdroksiidi massi <i>m<\/i>.<\/p>\n<p style=\"margin-left: 40px;\">Raud(III)h\u00fcdroksiidi valem on Fe(OH)<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>, leiame sellele molaarmassi.<\/p>\n<p style=\"margin-left: 80px;\">M[Fe(OH)<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>] = 56 + 3(16 + 1) = 107 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Otsitav suurus on moolide arv <i>n<\/i>.<\/p>\n<p style=\"margin-left: 80px;\"><span class=\"math-tex\">$x = {m \\over M} = {800g \\over 107 g\/mol} = 7.48mol$<\/span><\/p>\n<p>2.4. Mitu mooli on 450 g vett? 25 mol<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: 450 g n\u00e4itab vee massi <i>m<\/i>.<\/p>\n<p style=\"margin-left: 40px;\">Vee molekulvalem on H<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub>O, leiame sellele molaarmassi.<\/p>\n<p style=\"margin-left: 80px;\">M(H<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub>O) = 2\u00d71 + 16 = 18 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Otsitav suurus on moolide arv <i>n<\/i>.<\/p>\n<p style=\"margin-left: 80px;\"><span class=\"math-tex\">$x = {m \\over M} = {450g \\over18 g\/mol} = 25mol$<\/span><\/p>\n<p style=\"margin-left: 40px;\"><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\n<h2>N\u00e4idis\u00fclesanne 2. Aine massi arvutamine<\/h2>\n<table class=\"table table-hover\" style=\"width: 100%;\" border=\"0\" cellspacing=\"1\" cellpadding=\"1\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">1. Loe \u00fclesande tekst m\u00f5ttega l\u00e4bi.<\/span><\/span><\/span><\/td>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Arvuta 3 mol kaaliumnitraadi mass.<\/span><\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">2. Jooni alla k\u00f5ik arvud, mis on tekstis.<\/span><\/span><\/span><\/td>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Arvuta <u>3<\/u> mol kaaliumnitraadi mass.<\/span><\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">3. Omista arvule kindel f\u00fc\u00fcsikaline suurus.<\/span><\/span><\/span><\/td>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">3 mol n\u00e4itab ainehulka.<\/span><\/span><\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">4. Kirjuta v\u00e4lja andmed.<\/span><\/span><\/span><\/td>\n<td>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><i><span lang=\"et\"><span style=\"line-height: 150%;\">n <\/span><\/span><\/i><span lang=\"et\"><span style=\"line-height: 150%;\">= 3 mol<\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Samuti on hetkel teada, et aineks on kaaliumnitraat, mille valem on KNO<sub>3<\/sub>, mille molaarmass on:<\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">M(KNO<sub>3<\/sub>) = 39 + 14 + 3 <\/span><span style=\"background: white;\"><span style=\"line-height: 150%;\">$\\times $<\/span><\/span><span style=\"line-height: 150%;\"> 16 = 101 g\/mol<\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Otsitav suurus on hetkel mass, j\u00e4relikult <i>m<\/i> = ?<\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td><span lang=\"et\"><span style=\"line-height: 115%;\">5. Kirjuta v\u00e4lja valemid.<\/span><\/span><\/td>\n<td>\n<p>$n=\\frac{m}{M}$<\/p>\n<p><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Kuna antud juhul on vajalik mass, siis mass avaldub: <i>m<\/i> = <i>n<\/i> <\/span><span style=\"background: white;\"><span style=\"line-height: 150%;\">$\\times $<\/span><\/span><span style=\"line-height: 150%;\"> <i>M<\/i><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">6. Asenda arvud ja arvuta.<\/span><\/span><\/span><\/td>\n<td>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><i><span lang=\"et\"><span style=\"line-height: 150%;\">m<\/span><\/span><\/i><span lang=\"et\"><span style=\"line-height: 150%;\"> = 3 mol <\/span><span style=\"background: white;\"><span style=\"line-height: 150%;\">$\\times $<\/span><\/span><span style=\"line-height: 150%;\"> 101 g\/mol = 303 g<\/span><\/span><\/span><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><span style=\"line-height: 150%;\"><span lang=\"et\"><span style=\"line-height: 150%;\">Ka \u00fchikutega saad sama tehte teha:\u00a0 mol <\/span><\/span><span lang=\"et\"><span style=\"background: white;\"><span style=\"line-height: 150%;\">\u00d7 <\/span><\/span><\/span><span lang=\"et\"><span style=\"line-height: 150%;\">g\/mol, milles moolid taanduvad maha ning alles j\u00e4\u00e4b massi \u00fchik g.<\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69d5890d66bb4-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69d5890d66bb4-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69d5890d66bb4-collapse\">\u00dclesanne 3<\/button>\n        <\/h2>\n        <div id=\"accordion-69d5890d66bb4-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69d5890d66bb4-heading\">\n            <div class=\"accordion-body\">Lahenda \u00fclesanded.\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\">\u00a0<\/p>\n\n\n<div class=\"h5p-iframe-wrapper\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--fixed\" style=\"height: 366px;\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n\n\n<p><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69d5890d66bbb-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69d5890d66bbb-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69d5890d66bbb-collapse\">\u00dclesande 3 lahendused<\/button>\n        <\/h2>\n        <div id=\"accordion-69d5890d66bbb-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69d5890d66bbb-heading\">\n            <div class=\"accordion-body\">\n<p>3.1. Kui suur mass on 0,15 mol naatriumh\u00fcdroksiidil? 6 g<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: 0,15 mol n\u00e4itab ainehulka (moolide arvu) <i>n<\/i>. Naatriumh\u00fcdroksiidi valem on NaOH, sellele saame arvutada molaarmassi.<\/p>\n<p style=\"margin-left: 80px;\">M(NaOH) = 22 + 16 + 1 = 40 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Otsitav suurus on mass <i>m<\/i>.<i><\/i><\/p>\n<p style=\"margin-left: 80px;\"><i><span lang=\"ET\">m = n \u00d7 M = <\/span><\/i><span lang=\"ET\">0,15<\/span><span lang=\"ET\">\u00a0mol\u00a0\u00d7 40\u00a0<\/span><span lang=\"ET\">g\/<\/span><span lang=\"ET\">mol\u00a0<\/span><span lang=\"ET\">= 6 g<\/span><\/p>\n<p>3.2. Kui suur mass on 31 mmol l\u00e4mmastikhappel? 1,95 g<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: 31 mmol n\u00e4itab ainehulka (moolide arvu) <i>n<\/i>. Teisendame selle moolideks.<\/p>\n<p style=\"margin-left: 80px;\">31 mmol = 0,031 mol<\/p>\n<p style=\"margin-left: 40px;\">L\u00e4mmastikhappe valem on HNO<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>, sellele saame arvutada molaarmassi.<\/p>\n<p style=\"margin-left: 80px;\">M(HNO<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">3<\/span><\/span><\/span><\/sub>) = 1 + 14 + 3\u00d716 = 63 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Otsitav suurus on mass <i>m<\/i>.<i><\/i><\/p>\n<p style=\"margin-left: 80px;\"><i><span lang=\"ET\">m\u00a0=\u00a0n\u00a0\u00d7\u00a0M\u00a0=\u00a0<\/span><\/i><span lang=\"ET\">0,031 mol \u00d7 63\u00a0<\/span><span lang=\"ET\">g\/<\/span><span lang=\"ET\">mol\u00a0<\/span><span lang=\"ET\">= 1,95 g<\/span><\/p>\n<p>3.3. Kui suur mass on 6,02\u00d710<sup>23<\/sup> vee molekulil? 18 g<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: 6,02\u00d710<sup>23<\/sup> n\u00e4itab vee molekulide arvu <i>N<\/i>. Kuna alati on teada Avogadro arv <i>N<sub>A<\/sub><\/i> = 6,02\u00d710<sup>23<\/sup> aatomit\/mol, saame leida vee moolide arvu.<\/p>\n<p style=\"margin-left: 80px;\"><i><span lang=\"ET\"><span class=\"math-tex\">$n={N \\over N_A} = {{6.02 * 10^{23} aatomit}\u00a0 \\over 6.02 * 10^{23}aatomit\/mol} = 1mol$<\/span><\/span><\/i><\/p>\n<p style=\"margin-left: 40px;\">Aine massi leidmiseks peame arvutama selle molaarmassi. Vee molekulvalem on H<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub>O, leiame sellele molaarmassi.<\/p>\n<p style=\"margin-left: 80px;\">M(H<sub><span lang=\"ET\" style=\"border: nonewindowtext1.0pt; padding: 0cm;\"><span style=\"line-height: 150%;\"><span style=\"color: black;\">2<\/span><\/span><\/span><\/sub>O) = 2\u00d71 + 16 = 18 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Leiame n\u00fc\u00fcd otsitava suuruse, massi <i>m<\/i>:<i><\/i><\/p>\n<p style=\"margin-left: 80px;\"><i><span lang=\"ET\">m\u00a0=\u00a0n\u00a0\u00d7\u00a0M=<\/span><\/i><span lang=\"ET\">1 mol \u00d7 18\u00a0<\/span><span lang=\"ET\">g\/<\/span><span lang=\"ET\">mol\u00a0<\/span><span lang=\"ET\">= 18 g<\/span><\/p>\n<p>3.4. Vasta k\u00fcsimustele.<\/p>\n<p style=\"margin-left: 40px;\">Lahendus: Arvuta aine molaarmass, kui on teada, et 270 grammis aines oli aine hulk 15 mol. Vastus: 18 g\/mol<\/p>\n<p style=\"margin-left: 40px;\">Teada on aine mass <i>m <\/i>= 270 g ja aine hulk <i>n<\/i> = 15 mol. Nende andmetega saame leida otsitava suuruse, molaarmassi <i>M<\/i>.<\/p>\n<p style=\"margin-left: 80px;\"><i><span lang=\"ET\"><span class=\"math-tex\">$M ={m \\over n}= {270 g \\over 15 mol} = 18 g\/mol$<\/span><\/span><\/i><\/p>\n<p style=\"margin: 12.0pt 0cm 12.0pt 0cm;\"><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div>","protected":false},"excerpt":{"rendered":"<p>Mool on k\u00fcll keemikute seas v\u00e4ga laialt kasutatav \u00fchik, aga \u00fchtegi m\u00f5\u00f5teriista ei saa kasutada otseselt moolide m\u00f5\u00f5tmiseks. Samuti ei saa osta tavap\u00e4raselt lahtiseid komme\u00a0moolides, vaid ikka grammides. Selleks, et minna ainehulgalt\u00a0\u00fcle massile, kasutatakse molaarmassi. Mis on mooli ja massi &#8230;<\/p>\n","protected":false},"author":269,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-7","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/pages\/7","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/users\/269"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/comments?post=7"}],"version-history":[{"count":11,"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/pages\/7\/revisions"}],"predecessor-version":[{"id":939,"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/pages\/7\/revisions\/939"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/huvitavkeemia\/wp-json\/wp\/v2\/media?parent=7"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}