Calculate ΔH° in kilojoules for the following reaction, the preparation of the unstable nitrous acid, HNO2. Use the following thermochemical equations: 1) \( 2\text{NaCl} (s) + \text{H}_2\text{O} (l) \rightarrow 2\text{HCl} (g) + \text{Na}_2\text{O} (s) \) \(\Delta H^\circ = +507.31 \, \text{kJ}\)2) \( \text{NO} (g) + \text{NO}_2 (g) + \text{Na}_2\text{O} (s) \rightarrow 2\text{NaNO}_2 (s) \) \(\Delta H^\circ = -427.14 \, \text{kJ}\)3) \( \text{NO} (g) + \text{NO}_2 (g) \rightarrow \text{N}_2\text{O} (g) + \text{O}_2 (g) \) \(\Delta H^\circ = -42.68 \, \text{kJ}\)4) \( 2\text{HNO}_2 (l) \rightarrow \text{N}_2\text{O} (g) + \text{O}_2 (g) + \text{H}_2\text{O} (l) \) \(\Delta H^\circ = +34.35 \, \text{kJ}\)Explanation:- Each equation represents a chemical reaction indicating the reactants, products, and their states.- \(\Delta H^\circ\) denotes the standard enthalpy change for each reaction, measured in kilojoules (\(\text{kJ}\)). A positive value indicates an endothermic reaction, where heat is absorbed, while a negative value indicates an exothermic reaction, where heat is released.

Given : We have to calculate enthalpy change for HNO2.

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Calculate ΔH° in kilojoules for the following reaction, the preparation of the unstable nitrous acid, HNO2. Use the following thermochemical equations:

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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