Determine the Acid Dissociation Constant for a 0

question 22

Multiple Choice

Determine the acid dissociation constant for a 0.020 M formic acid solution that has a pH of 2.74.Formic acid is a weak monoprotic acid and the equilibrium equation of interest is HCOOH(aq) + H₂O(l) ⇌ H₃O⁺(aq) + HCO₂^-(aq) .

• A)1.8 × 10^-3
• B)1.8 × 10^-4
• C)3.6 × 10^-4
• D)3.6 × 10^-5

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