{"id":5947,"date":"2014-06-12T10:40:46","date_gmt":"2014-06-12T17:40:46","guid":{"rendered":"http:\/\/blogs.reed.edu\/sandbox\/?page_id=5947"},"modified":"2023-07-17T10:52:29","modified_gmt":"2023-07-17T17:52:29","slug":"volume-to-mass","status":"publish","type":"page","link":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/appendices\/calculations\/volume-to-mass\/","title":{"rendered":"Volume to Mass"},"content":{"rendered":"\n

Liquid reagents, whether pure liquids or solutions, are normally measured by volume. You can convert a pure liquid’s<\/em><\/strong> volume to number of moles if you know how to convert volume to mass.<\/p>\n\n\n\n

    \n
  1. Look up your liquid’s density (expressed in units of “g\/mL” or “g\/cm3<\/sup>“). Call this “d”.<\/li>\n\n\n\n
  2. Measure the volume of your liquid (in mL) using a graduated cylinder. Call this “V”.<\/li>\n\n\n\n
  3. The weight of your liquid (in g) is given by the product of its density and volume.<\/li>\n<\/ol>\n\n\n\n

    weight = dV<\/p>\n\n\n\n

    Sometimes you have a different problem: you know the mass (in g) of pure liquid<\/em> that is needed, and you want to calculate the corresponding volume (in mL). In this case, repeat step 1 and calculate the required volume using:<\/p>\n\n\n\n

    V = weight \/ d<\/p>\n\n\n\n

    Solution reagents.<\/strong> The instructions given above do not apply to solutions like “2 M NaOH” or “conc. HCl”. In these cases, you begin with the amount of solute contained in a certain volume of solution, and proceed accordingly. For example, 2 M NaOH contains 2 moles of NaOH in each liter of solution (or, equivalently, 2 mmol NaOH in each mL of solution).<\/p>\n","protected":false},"excerpt":{"rendered":"

    Liquid reagents, whether pure liquids or solutions, are normally measured by volume. You can convert a pure liquid’s volume to number of moles if you know how to convert volume to mass. weight = dV Sometimes you have a different problem: you know the mass (in g) of pure liquid that is needed, and you … Continue reading “Volume to Mass”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":5916,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"page-child.php","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-5947","page","type-page","status-publish","hentry"],"acf":[],"featured_image_src":null,"_links":{"self":[{"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/pages\/5947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/comments?post=5947"}],"version-history":[{"count":11,"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/pages\/5947\/revisions"}],"predecessor-version":[{"id":9539,"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/pages\/5947\/revisions\/9539"}],"up":[{"embeddable":true,"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/pages\/5916"}],"wp:attachment":[{"href":"https:\/\/blogs.reed.edu\/chemistry201-202-lab-ref-manual\/wp-json\/wp\/v2\/media?parent=5947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}