**Title: Calculation of Standard Enthalpy Change****Objective:**To calculate the standard enthalpy change for the given chemical reaction using standard heats of formation.**Reaction:**\[ \text{NH}_4\text{Cl(aq)} \rightarrow \text{NH}_3\text{(g)} + \text{HCl(aq)} \]**Instructions:**- Use the standard heats of formation to calculate the enthalpy change for the reaction.- Enter your answer in the provided numeric input field, labeled as "ANSWER," in kilojoules (kJ).**Guidance:**Use the References section to access important values related to standard heats of formation. These values are essential for performing the calculation accurately.**Note:**The answer should be expressed in kilojoules (kJ).

The reaction taking place is given as, => NH4Cl (aq) ------> NH3 (g) + HCl (aq) The enthalpy…

Answered: Using standard heats of formation,…

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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**Title: Calculation of Standard Enthalpy Change**

**Objective:**
To calculate the standard enthalpy change for the given chemical reaction using standard heats of formation.

**Reaction:**
\[ \text{NH}_4\text{Cl(aq)} \rightarrow \text{NH}_3\text{(g)} + \text{HCl(aq)} \]

**Instructions:**
- Use the standard heats of formation to calculate the enthalpy change for the reaction.
- Enter your answer in the provided numeric input field, labeled as "ANSWER," in kilojoules (kJ).

**Guidance:**
Use the References section to access important values related to standard heats of formation. These values are essential for performing the calculation accurately.

**Note:**
The answer should be expressed in kilojoules (kJ).

Expert Solution

Step 1

The reaction taking place is given as,

=> NH₄Cl (aq) ------> NH₃ (g) + HCl (aq)

The enthalpy change of any reaction can be written using the heat of formation of reactants and products as,

=> ΔH^o = sum of (heat of formation of products X reaction coefficient of product) - sum of (heat of formation of reactants X reaction coefficient of reactant)

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