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class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Inhoud</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">naar zijbalk verplaatsen</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">verbergen</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Top</div> </a> </li> <li id="toc-Moleculaire_massa" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Moleculaire_massa"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Moleculaire massa</span> </div> </a> <ul id="toc-Moleculaire_massa-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Moleculaire_massa_van_polymeren" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Moleculaire_massa_van_polymeren"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Moleculaire massa van polymeren</span> </div> </a> <ul id="toc-Moleculaire_massa_van_polymeren-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Inhoud" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Inhoudsopgave omschakelen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Inhoudsopgave omschakelen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Moleculaire massa</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ga naar een artikel in een andere taal. Beschikbaar in 62 talen" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-62" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">62 talen</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%83%D8%AA%D9%84%D8%A9_%D8%AC%D8%B2%D9%8A%D8%A6%D9%8A%D8%A9" title="كتلة جزيئية – Arabisch" lang="ar" hreflang="ar" data-title="كتلة جزيئية" data-language-autonym="العربية" data-language-local-name="Arabisch" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%B4%D0%BD%D0%BE%D1%81%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D1%81%D0%B0" title="Адносная малекулярная маса – Belarussisch" lang="be" hreflang="be" data-title="Адносная малекулярная маса" data-language-autonym="Беларуская" data-language-local-name="Belarussisch" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%90%D0%B4%D0%BD%D0%BE%D1%81%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D1%81%D0%B0" title="Адносная малекулярная маса – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Адносная малекулярная маса" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9C%D0%BE%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D0%BD%D0%B0_%D0%BC%D0%B0%D1%81%D0%B0" title="Молекулна маса – Bulgaars" lang="bg" hreflang="bg" data-title="Молекулна маса" data-language-autonym="Български" data-language-local-name="Bulgaars" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%A3%E0%A6%AC%E0%A6%BF%E0%A6%95_%E0%A6%AD%E0%A6%B0" title="আণবিক ভর – Bengaals" lang="bn" hreflang="bn" data-title="আণবিক ভর" data-language-autonym="বাংলা" data-language-local-name="Bengaals" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Tolz_molekulel" title="Tolz molekulel – Bretons" lang="br" hreflang="br" data-title="Tolz molekulel" data-language-autonym="Brezhoneg" data-language-local-name="Bretons" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Molekulska_masa" title="Molekulska masa – Bosnisch" lang="bs" hreflang="bs" data-title="Molekulska masa" data-language-autonym="Bosanski" data-language-local-name="Bosnisch" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Massa_molecular" title="Massa molecular – Catalaans" lang="ca" hreflang="ca" data-title="Massa molecular" data-language-autonym="Català" data-language-local-name="Catalaans" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Molek%C3%BClmasse" title="Molekülmasse – Duits" lang="de" hreflang="de" data-title="Molekülmasse" data-language-autonym="Deutsch" data-language-local-name="Duits" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9C%CE%BF%CF%81%CE%B9%CE%B1%CE%BA%CF%8C_%CE%B2%CE%AC%CF%81%CE%BF%CF%82" title="Μοριακό βάρος – Grieks" lang="el" hreflang="el" data-title="Μοριακό βάρος" data-language-autonym="Ελληνικά" data-language-local-name="Grieks" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Molecular_mass" title="Molecular mass – Engels" lang="en" hreflang="en" data-title="Molecular mass" data-language-autonym="English" data-language-local-name="Engels" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Molekula_maso" title="Molekula maso – Esperanto" lang="eo" hreflang="eo" data-title="Molekula maso" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Masa_molecular" title="Masa molecular – Spaans" lang="es" hreflang="es" data-title="Masa molecular" data-language-autonym="Español" data-language-local-name="Spaans" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Molekulmass" title="Molekulmass – Estisch" lang="et" hreflang="et" data-title="Molekulmass" data-language-autonym="Eesti" data-language-local-name="Estisch" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Masa_molekular" title="Masa molekular – Baskisch" lang="eu" hreflang="eu" data-title="Masa molekular" data-language-autonym="Euskara" data-language-local-name="Baskisch" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AC%D8%B1%D9%85_%D9%85%D9%88%D9%84%DA%A9%D9%88%D9%84%DB%8C" title="جرم مولکولی – Perzisch" lang="fa" hreflang="fa" data-title="جرم مولکولی" data-language-autonym="فارسی" data-language-local-name="Perzisch" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Molekyylimassa" title="Molekyylimassa – Fins" lang="fi" hreflang="fi" data-title="Molekyylimassa" data-language-autonym="Suomi" data-language-local-name="Fins" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Masse_mol%C3%A9culaire" title="Masse moléculaire – Frans" lang="fr" hreflang="fr" data-title="Masse moléculaire" data-language-autonym="Français" data-language-local-name="Frans" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Mais_mh%C3%B3il%C3%ADneach" title="Mais mhóilíneach – Iers" lang="ga" hreflang="ga" data-title="Mais mhóilíneach" data-language-autonym="Gaeilge" data-language-local-name="Iers" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Masa_molecular" title="Masa molecular – Galicisch" lang="gl" hreflang="gl" data-title="Masa molecular" data-language-autonym="Galego" data-language-local-name="Galicisch" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%A1%D7%94_%D7%9E%D7%95%D7%9C%D7%A7%D7%95%D7%9C%D7%A8%D7%99%D7%AA" title="מסה מולקולרית – Hebreeuws" lang="he" hreflang="he" data-title="מסה מולקולרית" data-language-autonym="עברית" data-language-local-name="Hebreeuws" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%85%E0%A4%A3%E0%A5%81_%E0%A4%AD%E0%A4%BE%E0%A4%B0" title="अणु भार – Hindi" lang="hi" hreflang="hi" data-title="अणु भार" data-language-autonym="हिन्दी" data-language-local-name="Hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Relativna_molekulska_masa" title="Relativna molekulska masa – Kroatisch" lang="hr" hreflang="hr" data-title="Relativna molekulska masa" data-language-autonym="Hrvatski" data-language-local-name="Kroatisch" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Molekulat%C3%B6meg" title="Molekulatömeg – Hongaars" lang="hu" hreflang="hu" data-title="Molekulatömeg" data-language-autonym="Magyar" data-language-local-name="Hongaars" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%B8%D5%AC%D5%A5%D5%AF%D5%B8%D6%82%D5%AC%D5%A1%D5%B5%D5%AB%D5%B6_%D5%A6%D5%A1%D5%B6%D5%A3%D5%BE%D5%A1%D5%AE" title="Մոլեկուլային զանգված – Armeens" lang="hy" hreflang="hy" data-title="Մոլեկուլային զանգված" data-language-autonym="Հայերեն" data-language-local-name="Armeens" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Massa_molekul_relatif" title="Massa molekul relatif – Indonesisch" lang="id" hreflang="id" data-title="Massa molekul relatif" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesisch" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Sameindamassi" title="Sameindamassi – IJslands" lang="is" hreflang="is" data-title="Sameindamassi" data-language-autonym="Íslenska" data-language-local-name="IJslands" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Massa_molecolare" title="Massa molecolare – Italiaans" lang="it" hreflang="it" data-title="Massa molecolare" data-language-autonym="Italiano" data-language-local-name="Italiaans" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%88%86%E5%AD%90%E9%87%8F" title="分子量 – Japans" lang="ja" hreflang="ja" data-title="分子量" data-language-autonym="日本語" data-language-local-name="Japans" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%9B%E1%83%9D%E1%83%9A%E1%83%94%E1%83%99%E1%83%A3%E1%83%9A%E1%83%A3%E1%83%A0%E1%83%98_%E1%83%9B%E1%83%90%E1%83%A1%E1%83%90" title="მოლეკულური მასა – Georgisch" lang="ka" hreflang="ka" data-title="მოლეკულური მასა" data-language-autonym="ქართული" data-language-local-name="Georgisch" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Takura_tacubrant" title="Takura tacubrant – Kabylisch" lang="kab" hreflang="kab" data-title="Takura tacubrant" data-language-autonym="Taqbaylit" data-language-local-name="Kabylisch" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%85%E0%B2%A3%E0%B3%81%E0%B2%A4%E0%B3%82%E0%B2%95" title="ಅಣುತೂಕ – Kannada" lang="kn" hreflang="kn" data-title="ಅಣುತೂಕ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="Kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B6%84%EC%9E%90%EB%9F%89" title="분자량 – Koreaans" lang="ko" hreflang="ko" data-title="분자량" data-language-autonym="한국어" data-language-local-name="Koreaans" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9C%D0%BE%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D0%B0%D0%BB%D1%8B%D0%BA_%D0%BC%D0%B0%D1%81%D1%81%D0%B0" title="Молекулалык масса – Kirgizisch" lang="ky" hreflang="ky" data-title="Молекулалык масса" data-language-autonym="Кыргызча" data-language-local-name="Kirgizisch" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Massa_muleculara" title="Massa muleculara – Lombardisch" lang="lmo" hreflang="lmo" data-title="Massa muleculara" data-language-autonym="Lombard" data-language-local-name="Lombardisch" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Molekulin%C4%97_mas%C4%97" title="Molekulinė masė – Litouws" lang="lt" hreflang="lt" data-title="Molekulinė masė" data-language-autonym="Lietuvių" data-language-local-name="Litouws" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Molekulu_masa" title="Molekulu masa – Lets" lang="lv" hreflang="lv" data-title="Molekulu masa" data-language-autonym="Latviešu" data-language-local-name="Lets" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9C%D0%BE%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D1%81%D0%BA%D0%B0_%D0%BC%D0%B0%D1%81%D0%B0" title="Молекулска маса – Macedonisch" lang="mk" hreflang="mk" data-title="Молекулска маса" data-language-autonym="Македонски" data-language-local-name="Macedonisch" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%B0%E0%A5%87%E0%A4%A3%E0%A5%81%E0%A4%AD%E0%A4%BE%E0%A4%B0" title="रेणुभार – Marathi" lang="mr" hreflang="mr" data-title="रेणुभार" data-language-autonym="मराठी" data-language-local-name="Marathi" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Jisim_molekul" title="Jisim molekul – Maleis" lang="ms" hreflang="ms" data-title="Jisim molekul" data-language-autonym="Bahasa Melayu" data-language-local-name="Maleis" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Molekylmasse" title="Molekylmasse – Noors - Nynorsk" lang="nn" hreflang="nn" data-title="Molekylmasse" data-language-autonym="Norsk nynorsk" data-language-local-name="Noors - Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Massa_moleculara" title="Massa moleculara – Occitaans" lang="oc" hreflang="oc" data-title="Massa moleculara" data-language-autonym="Occitan" data-language-local-name="Occitaans" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%85%E0%A8%A3%E0%A8%B5%E0%A9%80_%E0%A8%AD%E0%A8%BE%E0%A8%B0" title="ਅਣਵੀ ਭਾਰ – Punjabi" lang="pa" hreflang="pa" data-title="ਅਣਵੀ ਭਾਰ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="Punjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Masa_cz%C4%85steczkowa" title="Masa cząsteczkowa – Pools" lang="pl" hreflang="pl" data-title="Masa cząsteczkowa" data-language-autonym="Polski" data-language-local-name="Pools" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Massa_molecular" title="Massa molecular – Portugees" lang="pt" hreflang="pt" data-title="Massa molecular" data-language-autonym="Português" data-language-local-name="Portugees" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Mas%C4%83_molecular%C4%83" title="Masă moleculară – Roemeens" lang="ro" hreflang="ro" data-title="Masă moleculară" data-language-autonym="Română" data-language-local-name="Roemeens" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9C%D0%BE%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D1%8F%D1%80%D0%BD%D0%B0%D1%8F_%D0%BC%D0%B0%D1%81%D1%81%D0%B0" title="Молекулярная масса – Russisch" lang="ru" hreflang="ru" data-title="Молекулярная масса" data-language-autonym="Русский" data-language-local-name="Russisch" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Molekulska_masa" title="Molekulska masa – Servo-Kroatisch" lang="sh" hreflang="sh" data-title="Molekulska masa" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Servo-Kroatisch" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Molecular_mass" title="Molecular mass – Simple English" lang="en-simple" hreflang="en-simple" data-title="Molecular mass" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Molekulov%C3%A1_hmotnos%C5%A5" title="Molekulová hmotnosť – Slowaaks" lang="sk" hreflang="sk" data-title="Molekulová hmotnosť" data-language-autonym="Slovenčina" data-language-local-name="Slowaaks" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Molekulska_masa" title="Molekulska masa – Sloveens" lang="sl" hreflang="sl" data-title="Molekulska masa" data-language-autonym="Slovenščina" data-language-local-name="Sloveens" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9C%D0%BE%D0%BB%D0%B5%D0%BA%D1%83%D0%BB%D1%81%D0%BA%D0%B0_%D0%BC%D0%B0%D1%81%D0%B0" title="Молекулска маса – Servisch" lang="sr" hreflang="sr" data-title="Молекулска маса" data-language-autonym="Српски / srpski" data-language-local-name="Servisch" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Beurat_molekul" title="Beurat molekul – Soendanees" lang="su" hreflang="su" data-title="Beurat molekul" data-language-autonym="Sunda" data-language-local-name="Soendanees" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Molekylmassa" title="Molekylmassa – Zweeds" lang="sv" hreflang="sv" data-title="Molekylmassa" data-language-autonym="Svenska" data-language-local-name="Zweeds" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%A1%E0%B8%A7%E0%B8%A5%E0%B9%82%E0%B8%A1%E0%B9%80%E0%B8%A5%E0%B8%81%E0%B8%B8%E0%B8%A5" title="มวลโมเลกุล – Thai" lang="th" hreflang="th" data-title="มวลโมเลกุล" data-language-autonym="ไทย" data-language-local-name="Thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Molek%C3%BCl_k%C3%BCtlesi" title="Molekül kütlesi – Turks" lang="tr" hreflang="tr" data-title="Molekül kütlesi" data-language-autonym="Türkçe" 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class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Uiterlijk</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">naar zijbalk verplaatsen</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">verbergen</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Uit Wikipedia, de vrije encyclopedie</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nl" dir="ltr"><p>De <b>moleculaire massa</b> of <b>molecuulmassa</b> van een moleculaire <a href="/wiki/Stof_(scheikunde)" title="Stof (scheikunde)">stof</a>, is de <a href="/wiki/Massa_(natuurkunde)" title="Massa (natuurkunde)">massa</a> van één <a href="/wiki/Molecuul" title="Molecuul">molecuul</a> van die stof, uitgedrukt in <a href="/wiki/Atomaire_massa-eenheid" title="Atomaire massa-eenheid">atomaire massa-eenheden</a> (u), ook dalton (Da) genoemd. </p><p>De oudere, minder correcte benaming is <i>moleculair-</i> of <i>molecuulgewicht</i>, doorgaans afgekort tot <b>MW</b>, van het Engelse 'molecular weight'. </p> <div class="mw-heading mw-heading2"><h2 id="Moleculaire_massa">Moleculaire massa</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Moleculaire_massa&veaction=edit&section=1" title="Bewerk dit kopje: Moleculaire massa" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Moleculaire_massa&action=edit&section=1" title="De broncode bewerken van de sectie: Moleculaire massa"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>De moleculaire massa is de som van de <a href="/wiki/Atoommassa" title="Atoommassa">atoommassa</a>'s van de afzonderlijke atomen, waaruit het molecuul is opgebouwd. De atomen van ieder samenstellend <a href="/wiki/Scheikundig_element" class="mw-redirect" title="Scheikundig element">scheikundig element</a> zijn een mengsel van verschillende <a href="/wiki/Isotoop" title="Isotoop">isotopen</a>. </p><p>Bij de berekening van de molecuulmassa gaat men standaard uit van de normale, in de natuur voorkomende verhouding van deze isotopen voor elk element. Alleen als het molecuul speciaal gemaakt is met bepaalde isotopen, bijvoorbeeld <a href="/wiki/Zwaar_water" title="Zwaar water">zwaar water</a>, wordt hiervan afgeweken. </p><p>Een voorbeeld is <a href="/wiki/Water" title="Water">water</a>. De atoommassa's van <a href="/wiki/Waterstof_(element)" title="Waterstof (element)">waterstof</a> en <a href="/wiki/Zuurstof_(element)" title="Zuurstof (element)">zuurstof</a> zijn respectievelijk 1,00784 u en 15,999 u. De moleculaire massa van water is dus </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {MW_{H_{2}O}} =2\times 1,00784\ \mathrm {u} +15,999\ \mathrm {u} =18,015\ \mathrm {u} .}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">M</mi> <msub> <mi mathvariant="normal">W</mi> <mrow class="MJX-TeXAtom-ORD"> <msub> <mi mathvariant="normal">H</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mi mathvariant="normal">O</mi> </mrow> </msub> </mrow> <mo>=</mo> <mn>2</mn> <mo>×</mo> <mn>1</mn> <mo>,</mo> <mn>00784</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> <mo>+</mo> <mn>15</mn> <mo>,</mo> <mn>999</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> <mo>=</mo> <mn>18</mn> <mo>,</mo> <mn>015</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> <mo>.</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathrm {MW_{H_{2}O}} =2\times 1,00784\ \mathrm {u} +15,999\ \mathrm {u} =18,015\ \mathrm {u} .}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/80df015ce5c8fe8dde5e4a05ca43855b5a47fa0c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:49.102ex; height:2.843ex;" alt="{\displaystyle \mathrm {MW_{H_{2}O}} =2\times 1,00784\ \mathrm {u} +15,999\ \mathrm {u} =18,015\ \mathrm {u} .}"></span></dd></dl> <p>Voor zwaar water (D<sub>2</sub>O) is dit </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathrm {MW_{D_{2}O}} =2\times 2,0141\ \mathrm {u} +15,999\ \mathrm {u} =20,027\ \mathrm {u} .}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">M</mi> <msub> <mi mathvariant="normal">W</mi> <mrow class="MJX-TeXAtom-ORD"> <msub> <mi mathvariant="normal">D</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mi mathvariant="normal">O</mi> </mrow> </msub> </mrow> <mo>=</mo> <mn>2</mn> <mo>×</mo> <mn>2</mn> <mo>,</mo> <mn>0141</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> <mo>+</mo> <mn>15</mn> <mo>,</mo> <mn>999</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> <mo>=</mo> <mn>20</mn> <mo>,</mo> <mn>027</mn> <mtext> </mtext> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">u</mi> </mrow> <mo>.</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathrm {MW_{D_{2}O}} =2\times 2,0141\ \mathrm {u} +15,999\ \mathrm {u} =20,027\ \mathrm {u} .}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/50e3be482d991b6becdb69e33ffec12c1d456799" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:47.963ex; height:2.843ex;" alt="{\displaystyle \mathrm {MW_{D_{2}O}} =2\times 2,0141\ \mathrm {u} +15,999\ \mathrm {u} =20,027\ \mathrm {u} .}"></span></dd></dl> <p>Elke gegeven stof die is opgebouwd uit moleculen, heeft een specifieke moleculaire massa, maar een moleculaire massa identificeert niet direct het molecuul wat betreft zijn uiteindelijke structuur. <a href="/wiki/Isomeer" title="Isomeer">Isomeren</a> van een moleculaire stof hebben bijvoorbeeld dezelfde molecuulmassa, maar een andere structuur. </p><p>Met behulp van <a href="/wiki/Massaspectrometrie" title="Massaspectrometrie">massaspectrometrie</a> kan de moleculaire massa van een moleculaire verbinding bijna direct worden gemeten. </p> <div class="mw-heading mw-heading2"><h2 id="Moleculaire_massa_van_polymeren">Moleculaire massa van polymeren</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Moleculaire_massa&veaction=edit&section=2" title="Bewerk dit kopje: Moleculaire massa van polymeren" class="mw-editsection-visualeditor"><span>bewerken</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Moleculaire_massa&action=edit&section=2" title="De broncode bewerken van de sectie: Moleculaire massa van polymeren"><span>brontekst bewerken</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In tegenstelling tot kleine moleculen als water, <a href="/wiki/Benzeen" title="Benzeen">benzeen</a> of <a href="/wiki/Ethanol" title="Ethanol">ethanol</a> heeft een <a href="/wiki/Polymeer" title="Polymeer">polymeer</a> niet één exacte moleculaire massa, maar bestaat het uit een mengsel van macromoleculen met verschillende moleculaire massa's. Bij <a href="/wiki/Polyetheen" title="Polyetheen">polyetheen</a> bijvoorbeeld varieert dat van ca. 500.000 tot een paar miljoen. De verdeling van de moleculaire massa's (<a href="/wiki/Polydispersiteit" title="Polydispersiteit">polydispersiteit</a>) heeft een zeer grote invloed op de eigenschappen van het polymeer. Het meten van een dergelijke verdeling wordt bijvoorbeeld gedaan met <a href="/wiki/Gelpermeatiechromatografie" title="Gelpermeatiechromatografie">gelpermeatiechromatografie</a>, <a href="/w/index.php?title=Dampdrukosmometrie&action=edit&redlink=1" class="new" title="Dampdrukosmometrie (de pagina bestaat niet)">dampdrukosmometrie</a> of <a href="/wiki/Viscometer" title="Viscometer">viscosimetrie</a>. Een meer geavanceerde methode is <a href="/wiki/MALDI" title="MALDI">MALDI</a>-TOF (afkorting voor <i>matrix assisted laser desorption ionization-time of flight analyzer</i>), een vorm van massaspectrometrie waarbij het polymeer wordt ingebed in een organische <a href="/wiki/Matrix_(materiaalkunde)" title="Matrix (materiaalkunde)">matrix</a> en door een <a href="/wiki/Laser_(licht)" title="Laser (licht)">laser</a> in de gasfase wordt gebracht. Een polymeer dat bestaat uit een driedimensionaal netwerk, zoals hard <a href="/wiki/Polyurethaan" title="Polyurethaan">polyurethaanschuim</a>, heeft een zeer grote moleculaire massa. Een stuk schuim is dan één gigantisch molecuul. Indien men het schuim in twee stukken breekt, heeft men twee moleculen. </p>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Overgenomen van "<a dir="ltr" href="https://nl.wikipedia.org/w/index.php?title=Moleculaire_massa&oldid=67613737">https://nl.wikipedia.org/w/index.php?title=Moleculaire_massa&oldid=67613737</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Categorie:Alles" title="Categorie:Alles">Categorieën</a>: <ul><li><a href="/wiki/Categorie:Chemische_grootheid" title="Categorie:Chemische grootheid">Chemische grootheid</a></li><li><a href="/wiki/Categorie:Stofeigenschap" title="Categorie:Stofeigenschap">Stofeigenschap</a></li><li><a href="/wiki/Categorie:Stoichiometrie" title="Categorie:Stoichiometrie">Stoichiometrie</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Deze pagina is voor het laatst bewerkt op 1 jun 2024 om 22:01.</li> <li id="footer-info-copyright">De tekst is beschikbaar onder de licentie <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.nl">Creative Commons Naamsvermelding/Gelijk delen</a>, er kunnen aanvullende voorwaarden van toepassing zijn. 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