Chemistry
An exothermic reaction liberates 7.58 kJ of heat in a coffee cup calorimeter containing 157 grams of solution. The temperature of the solution in the calorimeterincreases by 11.2°C. How much heat was absorbed by the calorimeter? Assume the specific heat of the solution is 4.184 J/g·°C.
223 J
7.36 kJ
657 J
5820 J
-223 J
Homework Answers
First, calculate the heat evolved and compare with the listed number for the reaction:
157g x 4.184J/gC x 11.2C = 7357J
7580J - 7357J = 223J absorbed by calorimete
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