Chem 110A - Prep Chem

Chemistry Home
Sample Final Exam - Problem 8
Back to Problem 7 --- Continue to Problem 9
A cube of Zn that is 1.55 cm on each edge is treated with HCl. The reaction that occurs is:
Zn + 2HCl ➞ ZnCl2 + H2
If 6.95 L of H2 gas at STP is produced, what mass of Zn remains?