Quiz 9 Acids and Bases

Karen Timberlake

Answer the questions below and then click "submit" to send your answers.

  1. Acids

    2. Your answer:
    produce H+ (or hydronium ion H3O+) in water
    taste sour
    neutralize bases
    all of the above

  2. In a base,

    3. Your answer:
    tthe [OH-] is less than the [H+]
    the [OH-] is equal to the [H+]
    the [OH-] is greater than the [H+]
    the [OH-] is less than 1 x 10-7 M

  3. A solution has a [H3O+] of 1 x 10-5. What is the [OH-] of the solution?

    4. Your answer:
    1 x 10-5
    1 x 10-7
    1 x 10-9
    1 x 10-14

  4. On the pH scale, a pH of 1.5 would be

    5. Your answer:
    acidic
    very basic
    basic
    neutral

  5. Lemonade has a [H3O+] of 1 x 10-4. What is the pH of the lemonade?

    6. Your answer:
    2
    4
    10
    14

  6. An ammonia solution has a [OH-] of 1 x 10-3. What is the pH of the ammonia solution?

    7. Your answer:
    14
    13
    11
    3

  7. Of the following solutions, select the one that is basic: coffee pH 5.0, tomato juice pH 4.2, bleach pH 11.5, milk pH 6.4

    8. Your answer:
    milk
    tomato juice
    coffee
    bleach

  8. What is the [[H3O+] of coffee if coffee has a pH of 5.0?

    9. Your answer:
    1 x 10-5
    1 x 10-9
    1 x 10-4
    1 x 10-7

  9. A weak acid

    10. Your answer:
    does not dissolve in water
    ionizes slightly in water to give molecules and a few ions
    ionizes 100% in water to give all ions
    dissolves in water only as molecules

  10. KOH is a strong base because it

    11. Your answer:
    produces K+ and OH- ions only in water
    produces KOH, K+, and OH- ions in water
    gives a low pH
    does not dissolve in water

  11. A 50.0 mL sample of a 6.0 M NaOH solution is diluted with 250 mL of water. What is the final concentration of the diluted NaOH solution?

    12. Your answer:
    6.0 M
    3.0 M
    1.2 M
    1.0 M

  12. When an acid neutralizes a base

    13. Your answer:
    a salt is produced
    water is produced
    the amount of H+ matches the amount of OH-
    all of the above

  13. In this balanced neutralization equation, what is the coefficient needed for H2O? Al(OH)3 + HCl = AlCl3 + H2O

    14. Your answer:
    1
    2
    3
    6

  14. The product side of the balanced neutralization equation for Mg(OH)2 and HCl is

    15. Your answer:
    g(OH)2 + 2H2O
    gCl + H2O
    gCl2 + 2H2O
    gCl2 + H2O

  15. A buffer solution

    16. Your answer:
    maintains the pH of the solution
    resists pH changes when acid or base is added
    contains a weak acid or base and its salt
    all of the abve

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