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A Sample of Hydrogen Gas Was Collected Over Water at 21

Question 86

Multiple Choice

A sample of hydrogen gas was collected over water at 21 ∘\circ C and 685 mmHg. The volume of the container was 7.80 L. Calculate the mass of H2(g) collected. (Vapor pressure of water = 18.6 mmHg at 21 ∘\circ C.)


A) 0.283 g
B) 0.572 g
C) 0.589 g
D) 7.14 g
E) 435 g

Correct Answer:

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