When Zn reacts with HCl solution, the products are H2 gas and ZnCl2. A volume of 425 mL of H2 gas is collected over water at a total pressure of 758 mmHg and 16 °C. The vapor pressure of water at 16 °C is 14 mmHg. 2HCl(aq) + Zn(s) h H2(g) + ZnCl2(aq)
a. What was the partial pressure of the H2 gas?
b. How many moles of H2 gas were produced in the reaction