2007-10-30 05:17:27 · 6 answers · asked by sillyputty13 1 in Science & Mathematics ➔ Chemistry
moles = mass / molecular weight
mass = 100 g
molecular weight = ????
once you know molecular weight, you can calculate moles
2007-10-30 05:28:07 · answer #1 · answered by Dr W 7 · 1⤊ 0⤋
It depends on the substance in question. The number of moles of 100 grams of carbon is different from the number of moles of 100 grams of silicon.
^^
2007-10-30 05:21:55 · answer #2 · answered by asphinx 2 · 0⤊ 0⤋
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2016-05-17 01:59:46 · answer #3 · answered by ? 4 · 0⤊ 0⤋
It depends what element or molecule you are talking about. Grams are a unit of mass. A mole is a number (6E23) atoms/molecules (or really anything).
2007-10-30 05:21:45 · answer #4 · answered by gebobs 6 · 0⤊ 0⤋
See that does not work....you need to specify grams of what? Grams of carbon? nitrogen? etc etc. Once you supply that, all you do is divide by the molar mass of the element to get to moles.
2007-10-30 05:22:17 · answer #5 · answered by Anonymous · 0⤊ 0⤋
http://chemistry.about.com/
2007-10-30 09:19:11 · answer #6 · answered by novabludag 2 · 0⤊ 1⤋