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Whelan Whelan
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10 years ago
In the laboratory, hydrogen gas is usually made by the following reaction:

Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq)

How many liters of H2 gas, collected over water at an atmospheric pressure of 752 mm Hg and a temperature of 21.0°C, can be made from 3.132 g of Zn and excess HCl? The partial pressure of water vapor is 18.65 mm Hg at 21.0°C.
A) 0.0856 L
B) 1.15 L
C) 1.17 L
D) 1.20 L
Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
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hbutler2hbutler2
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