0.9775 grams of an unknown compound is dissolved in 50.0 ml of water. Initially, the water temperature is 22.3 degrees celsius. After addition of a solid , the solution temperature is 20.8 degrees celsius. The substance is known to have a molar mass of about 80 g/mol. Calculate the enthalpy of solution (delta H soln) in kj/mol. Show your work and make sure you indicate the proper sign (+or-).
0.9775 grams of an unknown compound is dissolved in 50.0 ml of water. Initially, the water temperature is 22.3 degrees celsius. After addition of a solid , the solution temperature is 20.8 degrees celsius. The substance is known to have a molar mass of about 80 g/mol. Calculate the enthalpy of solution (delta H soln) in kj/mol. Show your work and make sure you indicate the proper sign (+or-).
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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0.9775 grams of an unknown compound is dissolved in 50.0 ml of water. Initially, the water temperature is 22.3 degrees celsius. After addition of a solid , the solution temperature is 20.8 degrees celsius. The substance is known to have a molar mass of about 80 g/mol. Calculate the enthalpy of solution (delta H soln) in kj/mol. Show your work and make sure you indicate the proper sign (+or-).
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