**Problem Statement:**What is [H₃O⁺] in a solution of 0.075 M HNO₂ and 0.030 M NaNO₂?**Balanced Chemical Equation:**HNO₂ (aq) + H₂O (l) ⇌ H₃O⁺ (aq) + NO₂⁻ (aq)\[ K_a = 4.6 x 10^{-5} \]**Explanation:**To find the concentration of hydronium ions ([H₃O⁺]) in the given solution, we need to apply the concept of weak acid equilibrium involving HNO₂ in the presence of its conjugate base NO₂⁻. The acid dissociation constant (\( K_a \)) for nitrous acid (HNO₂) is given, which is crucial for solving this problem.

Answered: Image /qna-images/answer/77512090-690a-43c5-a32b-1e6572e7f97b.jpg

What is [H30*] in a solution of 0.075 M HNO, and 0.030 M NaNO,? HNO, (aq) + H,0 (1) = H;0* (aq) + NO, (aq) K = 4.6 x 105 %3D

What is [H30] in a solution of 0.075 M HNO, and 0.030 M NaNO,? HNO, (aq) + H,0 (1) = H;0 (aq) + NO, (aq) K = 4.6 x 105 %3D

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

**Problem Statement:**

What is [H₃O⁺] in a solution of 0.075 M HNO₂ and 0.030 M NaNO₂?

**Balanced Chemical Equation:**

HNO₂ (aq) + H₂O (l) ⇌ H₃O⁺ (aq) + NO₂⁻ (aq)
\[ K_a = 4.6 x 10^{-5} \]

**Explanation:**

To find the concentration of hydronium ions ([H₃O⁺]) in the given solution, we need to apply the concept of weak acid equilibrium involving HNO₂ in the presence of its conjugate base NO₂⁻. The acid dissociation constant (\( K_a \)) for nitrous acid (HNO₂) is given, which is crucial for solving this problem.

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