What Is K_b for the Following Equilibrium? K_a for HNO₂

question 37

Multiple Choice

What is K_b for the following equilibrium? K_a for HNO₂ is 5.0 × 10^-4.
NO₂^-(aq) + H₂O(l)
HNO₂(aq) + OH^-(aq)

• A)2.0 × 10^-4
• B)5.0 × 10^-4
• C)5.0 × 10¹⁰
• D)5.0 × 10¹⁸
• E)2.0 × 10^-11

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