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Author Question: Which of the following does not follow Dalton's law at sea level? a. Oxygen c. Water vapor b. ... (Read 70 times)

berenicecastro

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on: Jul 16, 2018
Which of the following does not follow Dalton's law at sea level?
 
  a. Oxygen c. Water vapor
  b. Nitrogen d. Trace gases

Question 2

One mole of any gas will occupy 22.4 L and contain ________ molecules.
 
  a. 6.02  1023 c. 0.602  1023
  b. 6.2  1023 d. 6.2  10-23


macagnavarro

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
Water vapor pressure does not follow Dalton's law because such pressure primarily depends upon temperature. Water vapor pressure must be subtracted from the total pressure of a given mixture if the gas mixture is saturated with water.

Answer to Question 2

ANS: A
1 mole of oxygen (mw = 32 g) occupies a volume of 22.4 L and contains 6.02  1023 molecules when measured at 0 C (273 K) and 1 atm.


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