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What volume (in L) of hydrogen at STP is produced as sulfuric acid (H2SO4) acts on 102 g of metallic calcium (Ca).
How many grams of iron (III) oxide would ideally be formed by the reaction of 55.0 g Fe with excess oxygen gas? If the actual reaction involving this same 55.0 g Fe produced only 26.9 g of iron (III) oxide, what would be the percent yield?