Question

1) For part A, calculate q (the heat lost in calories) for copper and lead. The specific heats of these metals are in the background section. Then calculate q (the heat gained in calories) for the water in each case. Remember that you used 25.0 g of water in the experiment. Show your calculations

2)The heat lost by the metal and the heat gained by the water should be the same. Are they? If not, list possible sources of error.

Mass of copper: 28.43g

Mass of lead: 22.00g

Initial temp of water: 23 C

Initial temp of all metals: 98C

Final temp of copper + water: 27C

Final temp of lead + water: 23C

Specific heat of water is 1.000 cal/g C

specific heat of copper is 0.092 cal/g C

Specific heat of lead is 0.031 cal/g C

Answer 1