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    Chemistry worksheet
    Topic: Table L Common Bases

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    Table L Common Bases
    1

    Which compound is an Arrhenius base?

    (1) CO2

    (2) CaSO4

    (3) Ca(OH)2

    (4) C2H5OH

    2

    Which pair of compounds represents one Arrhenius acid and one Arrhenius base?

    (1) CH3OH and NaOH

    (2) CH3OH and HCl

    (3) HNO3 and NaOH

    (4) HNO3 and HCl

    3

    The concentration of which ion is increased when LiOH is dissolved in water?

    (1) hydroxide ion

    (2) hydrogen ion

    (3) hydronium ion

    (4) halide ion

    4

    Which statement describes characteristics of a 0.01 M KOH(aq) solution?

    (1) The solution is acidic with a pH less than 7.

    (2) The solution is acidic with a pH greater than 7.

    (3) The solution is basic with a pH less than 7.

    (4) The solution is basic with a pH greater than 7.

    5

    Which substance is an Arrhenius base?

    (1) HNO3

    (2) KNO3

    (3) LiOH

    (4) CH3COOH

    6

    Which compound is an Arrhenius base?

    (1) HCl

    (2) H3PO4

    (3) Ca(OH)2

    (4) CH3COOH

    Base your answers to questions 7 on the information below.

    Calcium reacts with water. This reaction is represented by the balanced equation below. The aqueous product of this reaction can be heated to evaporate the water, leaving a white solid, Ca(OH)2(s).

    Ca(s) + 2H2O(ℓ) → Ca(OH)2(aq) + H2(g)

    7

    Write the chemical name of the base produced in the reaction.

    Allow 1 credit for calcium hydroxide.

    Base your answers to questions 8 on the information below and on your knowledge of chemistry.

    A company produces a colorless vinegar that is 5.0% HC2H3O2 in water. Using thymol blue as an indicator, a student titrates a 15.0-milliliter sample of the vinegar with 43.1 milliliters of a 0.30 M NaOH(aq) solution until the acid is neutralized.

    8

    Identify the negative ion in the NaOH(aq) used in this titration.

    Allow 1 credit for OH− or hydroxide.