Chapter 12.6, Problem 63PP

Answer the following for the reaction:
$2\text{HCl}(aq)+\text{Mg}(s)\to {\text{H}}_2(g)+{\text{MgCl}}_2(aq)$
a. How many milliliters of a $6.00\text{MHCl}$ solution are required to react with $15.0 \text{g}$ of magnesium?
b. How many liters of hydrogen gas can form at STP when $0.500 \text{L}$ of a $2.00\text{MHCl}$ solution reacts with excess magnesium?
c. What is the molarity of a $\text{HCl}$ solution if the reaction of $45.2 \text{mL}$ of the $\text{HCl}$ solution with excess magnesium produces $5.20 \text{L}$ of ${\text{H}}_2$ gas at $735\text{mmHg}$ and ${25}^{°}\text{C}$ ?