Concept Test 5

Internet Concept Test Chemistry 22
Prof. J. C. Baird
Marn-Yee Lee, Silvia Georges, Derek Cummings
Topic: Acids and Bases

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Up to 4 people can work together on this test.

There are 6 questions.

Background material. It is not necessary to read this.

Question 1

  • Sodium Chloride is completely dissociated in pure water, . Is the resulting solution acid, basic, or neutral?
    • Reason for Answer:

    Question 2

  • Hydrochloric acid, HCl, completely dissociates in water. If an amount of NaCl is added to a solution 0.001M in HCl will the pH increase above pH = 3, decrease below pH = 3, or stay the same?
    • Reason for Answer:

    Question 3

  • If 200 mL of 0.1M of a strong base is added to 100 mL of 0.2M of a strong acid. The solution, at equilibrium, is:
    • Reason for Answer:

    Question 4

  • If is added to water forms in solution. The solution is:

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    Question 5

  • The partial pressure of carbon dioxide in air is about = 0.0025 atm. As rain drops form (in effect, distilled water) they come to equilibrium with the carbon dioxide in the air (the dissolves in the water) with some equilibrium constant []/ = Keq. Are the rain drops acidic, basic, or neutral?

    • Reason for Answer:

    Question 6

  • Glycine is an amino acid that, like all amino acids, consists of both a basic group and an acid group. If the ionic species is placed in water would you expect the resulting solution to be acid, basic, or neutral?
    • Reason for Answer:

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