A 51.2g sample of glass, which has a specific heat capacity of 0.670J11C, , is put into a calorimeter (see sketch at right) that contains 200.0g of water. The temperature of the water starts off at 20.0C. When the temperature of the water stops changing it's 22.9C. The pressure remains constant at 1atm. Calculate the initial temperature of the glass sample. Be sure your answer is rounded to 2 significant digits