A 15.00 g chunk of lustrous silver metal is heated to 50.0 degrees C and is then placed in a coffee cup calorimeter containing 50.0 mL of water at 15.30 degrees C. After equilibrium, the water temperature is measured to be 16.56 degree C. Suggest which metal or metals could have been used.

Answer 1

In the calorimeter, the sum of heats gained is zero.
Heat gained by metal+heatgained by water=0

15*cmetal*(16.56-50.0)+50*cwater*(16.56-15.30)=0
solve for specific heat of the metal, then look at various metals to see a match.