the following data are provided: - volume of water in the calorimeter – 200 ml; - initial water temperature – 150c; - final water temperature – 250c - mass of ethane c2h6 burned – 3 grams (cp of water = 4.2 j g-1k-1). a) calculate the amount of heat needed to raise the temperature of the water from 150c at 250c. b) calculate the amount of heat released during the combustion of one mole of ethanol (c = 12; h = 1; o = 16).
