When 11.9 g of barium bromide (BaBr2) is dissolved in 107 g of water in a styrofoam calorimeter of negligible heat capacity, the temperature increases from 25.00 to 27.18 °C. Based on this observation, calculate q for the water and ΔH° for the process, assuming that the heat absorbed by the salt is negligible.BaBr2 (s) -------= Ba2+ (aq) + 2Br-(aq)
When 11.9 g of barium bromide (BaBr2) is dissolved in 107 g of water in a styrofoam calorimeter of negligible heat capacity, the temperature increases from 25.00 to 27.18 °C. Based on this observation, calculate q for the water and ΔH° for the process, assuming that the heat absorbed by the salt is negligible.BaBr2 (s) -------= Ba2+ (aq) + 2Br-(aq)
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter12: Thermodynamic Processes And Thermochemistry
Section: Chapter Questions
Problem 74AP
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When 11.9 g of barium bromide (BaBr2) is dissolved in 107 g of water in a styrofoam calorimeter of negligible heat capacity, the temperature increases from 25.00 to 27.18 °C. Based on this observation, calculate q for the water and ΔH° for the process, assuming that the heat absorbed by the salt is negligible.BaBr2 (s) -------= Ba2+ (aq) + 2Br-(aq)
The specific heat of water is 4.184 J °C-1 g-1.
Give the answers in kJ
qH2O =------- KJ
ΔH° = ------KJ
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