**Calcium Chloride and Heat Dissolution**When calcium chloride (CaCl₂) dissolves in water, it emits heat. The reaction is represented by the following chemical equation:\[ \text{CaCl}_2(s) \rightarrow \text{Ca}^{2+}(aq) + 2\text{Cl}^-(aq) \]The standard enthalpy of solution (\( \Delta H^\circ_{\text{soln}} \)) for this process is -81.3 kJ/mol.**Problem**Calculate the mass of calcium chloride required to increase the temperature of 500.00 mL of water from 25.0 °C to 30.0 °C. Assume the density of water is 1.00 g/mL.

First of all you need to find the amount of heat required to raise the temperature of water. For…

4) Calcium chloride (CaCl2) emits heat when dissolved in water. CaCl2e) → Ca- 2+ (aq) + 2Cl (aq) ΔΗ. soln =-81.3 kJ/mol %3D What mass of calcium chloride would be required to raise the temperature of 500.00 mL of water from 25.0 °C to 30.0 °C? Assume density of water is 1.00 g/ml.

4) Calcium chloride (CaCl2) emits heat when dissolved in water. CaCl2e) → Ca- 2+ (aq) + 2Cl (aq) ΔΗ. soln =-81.3 kJ/mol %3D What mass of calcium chloride would be required to raise the temperature of 500.00 mL of water from 25.0 °C to 30.0 °C? Assume density of water is 1.00 g/ml.

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

**Calcium Chloride and Heat Dissolution**

When calcium chloride (CaCl₂) dissolves in water, it emits heat. The reaction is represented by the following chemical equation:

\[ \text{CaCl}_2(s) \rightarrow \text{Ca}^{2+}(aq) + 2\text{Cl}^-(aq) \]

The standard enthalpy of solution (\( \Delta H^\circ_{\text{soln}} \)) for this process is -81.3 kJ/mol.

**Problem**

Calculate the mass of calcium chloride required to increase the temperature of 500.00 mL of water from 25.0 °C to 30.0 °C. Assume the density of water is 1.00 g/mL.

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