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(b) Since reaction (2) is the sum of reactions (1) and (3), it follows that the sum of AH1 and AH3 should be equal to AH2, according to Hess' Law. Use your data in Table 1 to show that AH2= AH1 + AH3.

(b) Since reaction (2) is the sum of reactions (1) and (3), it follows that the sum of AH1 and AH3 should be equal to AH2, according to Hess' Law. Use your data in Table 1 to show that AH2= AH1 + AH3.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.61QE: When 7.11 g NH4NO3 is added to 100 mL water, the temperature of the calorimeter contents decreases...
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(b) Since reaction (2) is the sum of reactions (1) and (3), it follows that the sum of AH1 and AH3 should be equal to AH2, according to Hess' Law. Use your data in Table 1 to show that AH2= AH1 + AH3.
Transcribed Image Text:(b) Since reaction (2) is the sum of reactions (1) and (3), it follows that the sum of AH1 and AH3 should be equal to AH2, according to Hess' Law. Use your data in Table 1 to show that AH2= AH1 + AH3.
Table 1. Constant pressure calorimetric measurements for the three reactions shown above. Reaction Amount of NaOH AT (°C) AHon (kJ) AHra (kJ/mol) to be used (1) 1.0 g 6.7 -1.40 -1.40 (2) 1.0 g 17.26 -3.61 -3.61 (3) (25 mL, 1.0 M) 56.92 -11.079 -11.079
Transcribed Image Text:Table 1. Constant pressure calorimetric measurements for the three reactions shown above. Reaction Amount of NaOH AT (°C) AHon (kJ) AHra (kJ/mol) to be used (1) 1.0 g 6.7 -1.40 -1.40 (2) 1.0 g 17.26 -3.61 -3.61 (3) (25 mL, 1.0 M) 56.92 -11.079 -11.079
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