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Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 34.4 g of KNO, is dissolved in 217 g of water at 23.00 °C. H,0 KNO, (s) → K*(aq) + NO, (aq) The temperature of the resulting solution decreases to 18.30 °C. Assume that the resulting solution has the same specific heat as water, 4.184 J/(g °C), and that there is negligible heat loss to the surroundings. How much heat was released by the solution? Isoln 8.17 kJ Incorrect

Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 34.4 g of KNO, is dissolved in 217 g of water at 23.00 °C. H,0 KNO, (s) → K*(aq) + NO, (aq) The temperature of the resulting solution decreases to 18.30 °C. Assume that the resulting solution has the same specific heat as water, 4.184 J/(g °C), and that there is negligible heat loss to the surroundings. How much heat was released by the solution? Isoln 8.17 kJ Incorrect

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.62QE: A 50-mL solution of a dilute AgNO3 solution is added to 100 mL of a base solution in a coffee-cup...
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Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 34.4 g of KNO, is dissolved in 217 g of water at 23.00 °C. H,0 KNO, (s) → K*(aq) + NO, (aq) The temperature of the resulting solution decreases to 18.30 °C. Assume that the resulting solution has the same specific heat as water, 4.184 J/(g · °C), and that there is negligible heat loss to the surroundings. How much heat was released by the solution? 9soln = 8.17 kJ Incorrect What is the enthalpy of the reaction? AHTxn = kJ/mol Incorrect
Transcribed Image Text:Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 34.4 g of KNO, is dissolved in 217 g of water at 23.00 °C. H,0 KNO, (s) → K*(aq) + NO, (aq) The temperature of the resulting solution decreases to 18.30 °C. Assume that the resulting solution has the same specific heat as water, 4.184 J/(g · °C), and that there is negligible heat loss to the surroundings. How much heat was released by the solution? 9soln = 8.17 kJ Incorrect What is the enthalpy of the reaction? AHTxn = kJ/mol Incorrect
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