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A chemistry student collected 0.032l of H2 gas at 1.1 atm pressure and 24C, using the following chemical reaction. How many grams of magnesium must have reacted?

Mg (s) + HCl 9 (aq) becomes H2 9g) + MgCl2 (aq)

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We need more information to solve this problem. Specifically, we need to know the volume (or concentration) of HCl used to react with the Mg. Without that information, we cannot determine how many grams of Mg reacted.

User Francesco Cariaggi
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