1. Solve: When you mix two substances, the heat gained by one substance is equal to the heat
lost by the other substance. Suppose you place 125 g of aluminum in a calorimeter with
1,000 g of water. The water changes temperature by 2 °C and the aluminum changes
temperature by - 74.95 °C.
A. Water has a known specific heat capacity of 4.184 J/g °C. Use the specific heat
equation to find out how much heat energy the water gained (9).