posted by kate .
2.) A 48 g sample of water at 75 °C is mixed with 32 g water at 18 °C. Find the temperature of the mixture.
heat lost by 48 g + heat gained by 32 g = 0
[mass H2O x specific heat H2O x (Tfinal- Tinitial)] + [mass H2O x specific heat water x (Tfinal-Tinitial)= 0
Solve for Tfinal which is the only unknown in the equation.