A 53.42g sample of water at 76.1 cegress Celcius is added to a sample of water at 23.3 degrees celsius in a constant pressure calorimeter. If the final temperature of the combined water is 39.0 degrees C and the heat capacity of the calorimeter is 26.3 J/C, calculate the mass of the water origninally in the calorimeter. Enter your answer in scientific notation.