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What is the mass of Zn which reacts with sulfric acid to give 2.08x10^-3grams of H2 gas? Show steps?

Zn + H2SO4 > ZnSO4 + H2 It’s all about ratios. 2.08x10^-3 moles of H2 gas means we would need the same number of moles of Zn. Mass = moles x RAM So 2.08x10^-3 x 65.4 = 0.136g (3 sf)

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