Answer to Question #180785 in General Chemistry for Jeff

Question

A student determined the calorimeter constant of the calorimeter using a procedure described in this lab. The student added 50.00 mL of cold water to 50.00 mL of heated DI water in a Styrofoam cup. The initial temperature of the cold water was 21 C and the initial temperature of the hot water 29.15 C. The maximum temperature of the mixture was 24.81 C. Assume the density of water is 1.00g/mL and specific heat is 4.184 J/gC.

a) determine the ^T for the hot water and the cold water

b) calculate the heat lost by the hot water

c) calculate the heat gained by the cold water

d) calculate the calorimeter constant using the ^T of the cold water.

Answer 1

a) Hot water =27C

Cold Water =09C

b) -4598 J

c) =75,348 J

d) 836.8 J