Thursday
July 31, 2014

Homework Help: Chemistry-Gases

Posted by Anonymous on Wednesday, April 2, 2014 at 11:01pm.

A common laboratory preparation of hydrogen on a small scale uses the reaction of zinc with hydrochloric acid. Zinc chloride is the other product.

(a) If 13.0 L of H2 at 765 torr and 20.0 C is wanted, how many grams of zinc are needed, in theory?


(b) If the acid is available as 8.59 M HCl, what is the minimum volume of this solution (in milliliters) required to produce the amount of H2 described in part (a)?

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