1. In the Pre-lab, you used standard heats of formation to calculate AH for each reaction. Compare those "accepted" valu

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1 In The Pre Lab You Used Standard Heats Of Formation To Calculate Ah For Each Reaction Compare Those Accepted Valu 1 (34.37 KiB) Viewed 40 times

1. In the Pre-lab, you used standard heats of formation to calculate AH for each reaction. Compare those "accepted" values to your experimental values by calculating a percent error for each. An acceptable amount of error is 5 - 10% Comment whether your entor is acceptable or not for each reaction accepted AH-experimental AH 100% %error = accepted AH a. Reaction 1: -55.8 kmol +57,04 KI. -55.8 52.2% b. Reaction 2: Yerr = 25.77% 3.88 FJ/mol = (-2.88 19 -3.88 52.21 ks/ml - (-51.5 kshana) kJ ! c. Reaction 3 %erro= 1.35% - 52.21 bolno 2. Using YOUR RESULTS for AH for Reaction I and Reaction 2 and Hess's law, calculate AH for Reaction 3. Show how you combine Reaction 1 & Reaction 2 to sum to Reaction 3 3. We assumed that the heat loss to the calorimeter and surroundings is negligible Think about heat flow in and out of your system. How would you expect contact with the surroundings to change your experimental AT and AH values 8 Tab #9