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Acids and BasesMCQ

Acetylsalicylic acid (aspirin) behaves as an acid according to the equation shown. Calculate Kb for Acids and Bases Chemistry Question

Question

Acetylsalicylic acid (aspirin) behaves as an acid according to the equation shown. Calculate Kb for the C9H7O4–(aq) ion. (Ka = 3.0 x 10^-4)
HC9H7O4(aq) + H2O ⇌ H3O+(aq) + C9H7O4–(aq)

A.

3.0 x 10^-17

B.

3.3 x 10^-11

✓ Correct
C.

9.0 x 10^-8

D.

3.3 x 10^3

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