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How many liters of hydrogen gas can be made from 65.5g of magnesium at STP?

Magnesium reacts to sulfric acid according to this equation...
Mg+H2SO4-->MgSO4+H2

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mols Mg = grams/molar mass = ?
1 mol Mg = 1 mol H2 gas
mol H2 x 22.4L = ?L at STP

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