(Solved): Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and 29.7mL of hyd ...

Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and $29.7\mathrm{mL}$ of hydrogen gas over water at $27.{}^{?}\mathrm{C}$ and $751.\mathrm{mmHg}$. How many grams of aluminum reacted? The partial pressure of water at $27.{}^{?}\mathrm{C}$ is $26.8\mathrm{mmHg}$. Be sure your answer has the correct number of significant figures. Note: Reference the Conversion factors for non-SI units and Fundamental constants tables for additional information.