A 19.0g sample of brass, which has a specific heat capacity of 0.375·J·g−1°C−, is dropped into an insulated container containing 300.0g of water at 20.0°C and constant pressure of 1atm. The initial temperature of the brass is 81.7°C.

Assuming no heat is absorbed from or by the container, or the surroundings, calculate the equilibrium temperature of the water. Be sure your answer has the correct number of significant digits.