**Transcription for Educational Website:**---When a solid dissolves in water, the solution may become hotter or colder. The **dissolution enthalpy** (dissolving) can be determined using a coffee cup calorimeter.In the laboratory, a general chemistry student finds that when **21.17 g of BaBr₂(s)** is dissolved in **113.40 g of water**, the temperature of the solution **increases from 24.37 to 27.48 °C**.The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be **1.54 J/°C**.Based on the student's observation, calculate the dissolution enthalpy of BaBr₂(s) in kJ/mol.Assume the specific heat capacity of the solution is equal to the specific heat capacity of water.\[ \Delta_{\text{dis}}H = \boxed{\phantom{0000}} \text{ kJ/mol} \]---**Explanation:**- The text describes an experiment to measure how the temperature of a solution changes when a solid (BaBr₂) is dissolved in water, using a coffee cup calorimeter.- Key data: 21.17 g of BaBr₂, 113.40 g of water, temperature change from 24.37 °C to 27.48 °C, heat capacity of calorimeter 1.54 J/°C.- The goal is to calculate the dissolution enthalpy in kJ/mol, assuming the solution's specific heat capacity is the same as water's.No graphs or diagrams are present in the text.

Specific heat- It is the amount of heat required to raise the temperature of 1g of substance by 10…

When a solid dissolves in water, the solution may become hotter or colder. The dissolution enthalpy (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 21.17 g BaBr2(s) is dissolved in 113.40 g water, the temperature of the solution increases from 24.37 to 27.48 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.54 J/ºC. Based on the student's observation, calculate the dissolution enthalpy of BaBr2(s) in kJ/mol. Assume the specific heat capacity of the solution is equal to the specific heat capacity of water. AdisH kJ/mol

When a solid dissolves in water, the solution may become hotter or colder. The dissolution enthalpy (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 21.17 g BaBr2(s) is dissolved in 113.40 g water, the temperature of the solution increases from 24.37 to 27.48 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.54 J/ºC. Based on the student's observation, calculate the dissolution enthalpy of BaBr2(s) in kJ/mol. Assume the specific heat capacity of the solution is equal to the specific heat capacity of water. AdisH kJ/mol

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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