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Medical College Admission Test
Chemical and Physical Foundations of Biological Systems

Stoichiometry of Mg and HCl Reaction

Hard General Chemistry Stoichiometry And Chemical Reactions

A researcher is studying the reaction between magnesium (Mg) and hydrochloric acid (HCl), which produces magnesium chloride (MgCl2) and hydrogen gas (H2). The balanced chemical equation for the reaction is:

Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g)

If 0.50 moles of magnesium react with an excess of hydrochloric acid, how many grams of hydrogen gas are produced? (Molar mass of H2 is approximately 2.02 g/mol)

Hint

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Correct1.2K
% Correct67%