Determine the [C₂H₃O₂^-] of the Following Aqueous Solution

question 86

Multiple Choice

Determine the [C₂H₃O₂^-] of the following aqueous solution.Initial concentrations are given.
[HC₂H₃O₂] = 0.250 M,[HI] = 0.120 M K_a (acetic acid) = 1.8 × 10^-5

• A)8.6 × 10^-6 M
• B)3.8 × 10^-5 M
• C)1.8 × 10^-5 M
• D)0.25 M
• E)0.37 M