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When Ca(OH)2 is dissolved in water, it is known that the enthalpy of solution (AHsoln) is -16.2 kJ/mol. Determine the change in temperature, in °C, that would be measured in a coffee-cup calorimeter when 54 g of calcium hydroxide is added to 5000.0 mL of water. Comment: The experiment is done at low concentration so you can neglect the mass of the reactant in the calculation of qH20- Given: specific heat capacity of water = 4.186 J/g°C; density of water = 1.00 g/mL; molar mass of calcium hydroxide = 74.093 g/mol Enter the numerical value only, using 2 sig figs. Remember to include the sign for negative values.

When Ca(OH)2 is dissolved in water, it is known that the enthalpy of solution (AHsoln) is -16.2 kJ/mol. Determine the change in temperature, in °C, that would be measured in a coffee-cup calorimeter when 54 g of calcium hydroxide is added to 5000.0 mL of water. Comment: The experiment is done at low concentration so you can neglect the mass of the reactant in the calculation of qH20- Given: specific heat capacity of water = 4.186 J/g°C; density of water = 1.00 g/mL; molar mass of calcium hydroxide = 74.093 g/mol Enter the numerical value only, using 2 sig figs. Remember to include the sign for negative values.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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When Ca(OH)2 is dissolved in water, it is known that the enthalpy of solution (AHsoln) is -16.2 kJ/mol. Determine the change in temperature, in °C, that would be measured in a coffee-cup calorimeter when 54 g of calcium hydroxide is added to 5000.0 mL of water. Comment: The experiment is done at low concentration so you can neglect the mass of the reactant in the calculation of qH2o- Given: specific heat capacity of water = 4.186 J/g°C; density of water = 1.00 g/mL; molar mass of calcium hydroxide =74.093 g/mol Enter the numerical value only, using 2 sig figs. Remember to include the sign for negative values.
Transcribed Image Text:When Ca(OH)2 is dissolved in water, it is known that the enthalpy of solution (AHsoln) is -16.2 kJ/mol. Determine the change in temperature, in °C, that would be measured in a coffee-cup calorimeter when 54 g of calcium hydroxide is added to 5000.0 mL of water. Comment: The experiment is done at low concentration so you can neglect the mass of the reactant in the calculation of qH2o- Given: specific heat capacity of water = 4.186 J/g°C; density of water = 1.00 g/mL; molar mass of calcium hydroxide =74.093 g/mol Enter the numerical value only, using 2 sig figs. Remember to include the sign for negative values.
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