In this exercise, you will calculate molar value of ΔH (in kJ/mol) for dissolving NH4H2PO4 in Part D of the Calorimetry lab. (a) What temperature change did you find for dissolving NH4H2PO4 in Part D of the experiment? (Include the + or - sign in your answer.) WebAssign will check your answer for the correct number of significant figures. -.74 Correct: Your answer is correct. °C (b) What mass of water did you find in Part D of the experiment? WebAssign will check your answer for the correct number of significant figures. 98.760 Correct: Your answer is correct. g (c) What mass of NH4H2PO4 did you dissolve in Part D of the experiment? WebAssign will check your answer for the correct number of significant figures. 8.646 Correct: Your answer is correct. g (d) Calculate ΔH in kilojoules for your reaction in Part D. (Enter your answer to three significant figures.) WebAssign will check your answer for the correct number of significant figures..128 Incorrect: Your answer is incorrect. kJ (e) Calculate the molar value of ΔH (in kJ/mol) for t