Chemistry
posted by Ray .
A 522g piece of copper tubing is heated to 89.5C and placed in an insulated vessel containing 159g of water at 22.8C. Assuming no loss of water and a heat capacity for the vessel of 10.0J/K, what is the final temperature of the system ( c of copper = 0.387 J/g*K)?

Heat absorbed by the water + heat absorbed by the vessel + heat given up by the heated copper tubing = 0
[mass H2O x specific heat water x (TfinalTinitial)] + [10 J/C*(TfinalTinitial)] + mass copper x specific heat copper x (TfinalTinitial) = 0
Solve for Tfinal. Post your work if you get stuck. 
89

36.6

Oops I did 455 g Cu to get my answer.