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17. A student makes hydrogen gas by reacting zinc and dilute hydrochloric acid. The hydrogen gas was collected over water at temperature of 21.0 oC and a barometric pressure of 753.8 mm of Hg? The volume of gases was determined to be 0.567 Liter.
a. What is the partial pressure of the water vapor
b. What is the partial pressure of the hydrogen gas.
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Partial pressure of the water vapor
Partial pressure of the hydrogen gas
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B.Given:
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__1_ Zn
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+ _2_ HCl
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_1_ ZnCl2
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+ _1_ H2
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0.567 L
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Know: The 0.567 Liters is composed of both water vapor
and hydrogen gas
Total Pressure = 753.8 mm of Hg
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Considering Dalton's Law of Partial Pressures:
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 The Vapor Pressure of Water at Various Temperatures can be found in Appendix E. of Whitten Davis And Peck
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