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Weak Acid and Base Equilibria

AP Chemistry· difficulty 3/5

Salt Origin pH NaCl SA + SB 7 NH4Cl SA + WB < 7 NaC2H3O2 WA + SB > 7

Which salt produces a basic solution when dissolved in water?

  • A

    Potassium nitrate

  • B

    Sodium chloride

  • C

    Sodium acetate

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  • D

    Ammonium chloride

Explanation

Sodium acetate is the salt of a strong base and weak acid; the acetate ion hydrolyzes water to give OH-, raising pH above 7.

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