Which of the following is the strongest acid?
A) HNO2, Ka = 5.6 × 10−4
B) HCN, Ka = 6.2 × 10−10
C) NH4+, Ka = 5.6 × 10−10
D) CH3CO2H, Ka = 1.8 × 10−5
E) HCO2H, Ka = 1.8 × 10−4
Correct Answer:
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