In Which of the Following Aqueous Solutions Does the Weak

question 92

Multiple Choice

In which of the following aqueous solutions does the weak acid exhibit the lowest percentage ionization?

• A)0.01 M HCN (K_a = 6.2 × 10^-10)
• B)0.01 M H₂CO₃ (K_a = 4.5 × 10^-7)
• C)0.01 M HNO₂ (K_a = 4.0 × 10^-4)
• D)0.01 M HCHO₂ (K_a = 1.8 × 10^-4)
• E)0.01 M HOCl (K_a = 3.5 × 10^-8)

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