Consider the K_a Values for the Following Acids

question 63

Multiple Choice

Consider the K_a values for the following acids:
Cyanic acid,HOCN,3.5 × 10^-4
Formic acid,HCHO₂,1.7 × 10^-4
Lactic acid,HC₃H₅O₃,1.3 × 10^-4
Propionic acid,HC₃H₅O₂,1.3 × 10^-5
Benzoic acid,HC₇H₅O₂,6.3 × 10^-5
Which has the strongest conjugate base?

• A)propionic acid
• B)benzoic acid
• C)lactic acid
• D)formic acid
• E)cyanic

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