$2\text{NaCl} + 2\text{H}_2\text{O} \rightarrow 2\text{NaOH} + \text{Cl}_2 + \text{H}_2$. What mass of chlorine comes from $117\ \text{g}$ of sodium chloride? Use $\text{NaCl} = 58.5$ and $\text{Cl}_2 = 71\ \text{g/mol}$.