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# A 41.5mL sample of H2 at STP would contain how many grams of hydrogen?

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- 8 years agoFavorite Answer
41.5 ml x 1 L / 1000mL x 22.4 grams / 1 L = 0.00093 grams H2

STP's conversion factor is 22.4 grams per liter

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