Practice Quiz

CLEP Chemistry Practice Test - Question List

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36. A solution that contains less solute than it can hold at a given temperature is
  1. disassociated.
  2. saturated.
  3. supersaturated.
  4. unsaturated.
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37. The atomic number of an element indicates which of the following?
  1. the number of neutrons in the atom
  2. the number of protons in the atom
  3. the sum of the neutrons and protons in the atom
  4. the sum of the protons and electrons in the atom
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38.

What is the percent mass oxygen in acetone (C3H6O)?

  1. 1.00%
  2. 10.3%
  3. 27.6%
  4. 62.0%
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39. Which of the following is not true of a sample of gas as it is heated in a rigid, closed container?
  1. The pressure of the molecules increases.
  2. The average speed of the molecules increases.
  3. The average distance between molecules increases.
  4. The number of collisions between molecules increases.
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40. The density of a gas is 1.35 g/L at standard temperature and pressure (STP). What is the molar mass of the gas at STP?
  1. 0.0603 g/mol
  2. 6.02 g/mol
  3. 22.4 g/mol
  4. 30.2 g/mol
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