Chemistry

Oswaldo Fitzpatrick

31 October, 06:34

7. Foam cup A has 36 mL of water that contain 2 moles of HCL at 20°C. Foam cup B has 36 mL of water that contain 2 moles NaOH of at 20°C. The contents of foam cup A are added to foam cup B and a chemical reaction occurs. The final temperature of the contents of cup B is 31°C. Calculate the enthalpy change of the reaction. The density of each solution is 1g/ml. A.-1.66 kj B.-3.31 kj C.-6.62 kj D.-13.2