Is the Calorimeter Constant Calculation Correct?

[blicker]

Homework Statement

cold water: 50g
cold water temp: 22.23 C
hot water: 50 g
hot water temp: 63.2 C
final temp: 39.55 C

Homework Equations

The Attempt at a Solution

heat lost by hot water:
(4.18)(50)(39.55-63.22)=-4942.85

heat gained by cold water:
(4.18)(50)(39.55-22.23)=3619.88

heat gained by calorimeter:
-(-4942.85 J+3619.88 J)=1322.97 J

calorimeter constant:
1322.97/17.32=76.38

is this right? I am especially not sure about the last one.

 

[Borek]

Looks OK to me.