When 1.75 g of CaCl2 dissolves in 125 g of water in a coffee-cup calorimeter,the temperature increases by 2.44°C.What is the heat change per mole of CaCl2 dissolved in water? Assume that all the heat is absorbed by the water (c = 4.18 J/g⋅°C) .
A) −11.3 kJ
B) −728 J
C) −1.13 kJ
D) −80.9 kJ
E) −91.9 kJ
Correct Answer:
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