Answer to Question #53911 in General Chemistry for Thuy

Question

472 mL of H2 was collected was water when 1.256 g Zn reacted with excess HCl. The atmospheric pressure during the experiment was 754 mm Hg and the temperature was 26 degree Celcius.
A.) Write the balanced chemical equation for this reaction.
B.) What is the water vapor pressure at 26 degree Celcius to mm Hg?
C.) What is the partial pressure (in atmosphere) of dry hydrogen gas in the mixture?
D.) Calculate the number of moles of H2 produced by this reaction using the ideal gas law.