Determine the heat lost by the hot water: (assume density of water = 1.00 g/ml and the specific heat of water = 4.18 Jg-1K-1) qhot = mass hot water x (Thot - Tfinal) x specific heat of water.   Initial hot water: 67 deg C;  v = 100 mL Initial cold water: 25 deg C; v = 100 mL Final water temp: 38 deg C

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