Re: converting grams to moles

Re: converting grams to moles   (10/15/2008, 4:33 PM)

Start with this page:

https://www.convertunits.com/from/2.01+grams+Na2S2O3/to/moles

2.01 grams of Na2S2O3 = 0.0127129 moles of Na2S2O3

Now check this page:

https://www.convertunits.com/molarmass/Na2S2O3

Na2S2O3 is also known as Sodium Thiosulfate. There are 2 atoms of Sulfur (S) in each molecule of Na2S2O3. So if you have 0.0127129 moles of Na2S2O3, that means you would have twice as many moles of S.

So 2.01 grams of Na2S2O3 will give you 2 * 0.0127129 moles of S = 0.0254258 moles of Sulfur.