00 g sample of nitromethane was burned in a calorimeter that contained 250 g of water at 20.5 o C. Calculate the final temperature of the water if...

A 5.00 g sample of nitromethane was burned in a calorimeter that  contained 250 g of water at 20.5oC. Calculate the final temperature of the water if all 5.00 g of nitromethane is combusted.

Enthalpy of combustion is 401.6 kj