A sample of magnesium metal was placed in a solution of hydrochloric acid producing magnesium chloride and hydrogen gas. The hydrogen was collected by water displacement at 25.0oC and found to have a total pressure of 1.10atm and a volume of 2.00L. If the vapor pressure of water at 25.0oC is 0.03126 atm, how many grams of magnesium were used in the reaction?
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