A 32.0 mL sample of hydrogen is collected over water at 20.0 degrees Celsius and 750.0 torr. What is the volume of the dry gas at STP? (Vapor pressure of water at 20 degrees C = 17.5 torr)
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Answer:
760 torr is the ans
Explanation:
(P1V1)/T1 = (P2V2/T2)
P1 = 750 torr - vapor pressure H2O @ 20 degrees Celsius (note the correct spelling of Celsius).
V1 = 32 mL
T1 = change C to Kelvin.
P2 and T2 are STP; i.e., 760 torr and 273 K.
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