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12 June, 21:03

If you have 100 grams of H2, how many moles of H2 is that?

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  1. 12 June, 22:49
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    the 2 next the H indicates that there is two H is one molecule

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  2. 12 June, 23:57
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    So you take 100 grams/1 times by 1moleH2/2.0158grams H2. The 2.0158 is the molar mass of Hydrogen times by 2 because of the H2, simplified to 100/2.0158 = # of moles, So 50 wold be the answer.
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