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HELP! How many grams of water are made from the reaction of 4.0 grams of hydrogen gas?

HELP! How many grams of water are made from the reaction of 4.0 grams of hydrogen gas?
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HELP! How many grams of water are made from the reaction of 4.0 grams of hydrogen gas?

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User Elias
by
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1 Answer

3 votes
n H2 = mH2 / MH2
= 4.0g / 2gmol-1
= 2 mol
therefore n H2O = 1 mol

mH2O = nH2O * MH2O
= 1mol * 18 gmol-1
=18 g
answered
User Sigurd V
by
8.1k points
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