Homework Help: Chemistry

Posted by Carolina on Tuesday, September 13, 2011 at 5:26pm.

Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution. A 2.970-g sample of Mg metal is added to 50.0 mL of a 4.00 M HCl solution, and the reaction goes to completion. How many grams of H2 are formed?

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