What Is the Approximate Value of the Equilibrium Constant,K_n,for the Neutralization

question 141

Multiple Choice

What is the approximate value of the equilibrium constant,K_n,for the neutralization of nitrous acid with ammonia,shown in the equation below? The K_a for HNO₂ is 4.5 × 10^-4 and the K_b for NH₃ is 1.8 × 10^-5. HNO₂(aq) + NH₃(aq) ⇌ NH₄NO₂(aq)

• A)8.1 × 10⁵
• B)1.8 × 10⁹
• C)4.5 × 10¹⁰
• D)8.1 × 10¹⁹

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