SubstanceAG°F (kJ/mol)FeO(s)-255.2H2(g)Fe(s)H20(1)Pb(s)-237.202(g)H2SO4(aq)PbSO4(s)-744.5-813.0 2Pb(s) +O,(g) + 2HS0,(aq)+ 2H,SO404(aq) –2PbSO,(s) + 2H,0(1)E°cell=

The ΔG for the above reaction can be calculated as ΔG0 = sum of (ΔGf of products X reaction…

Answered: Substance AG°F (kJ/mol) FeO(s) -255.2…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 42QRT

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The decomposition of ozone, O3, to oxygen, O2, is an exothermic reaction. What is the sign of q? If you were to touch a flask in which ozone is decomposing to oxygen, would you expect the flask to feel warm or cool?
A 50-mL solution of a dilute AgNO3 solution is added to 100 mL of a base solution in a coffee-cup calorimeter. As Ag2O(s) precipitates, the temperature of the solution increases from 23.78 C to 25.19 C. Assuming that the mixture has the same specific heat as water and a mass of 150 g, calculate the heat q. Is the precipitation reaction exothermic or endothermic?
9.83 A student performing a calorimetry experiment combined 100.0 mL of 0.50 M HCl and 100.0 mL of 0.50 M NaOH in a coffee cup calorimeter. Both solutions were initially at 20.0°C, but when the two were mixed, the temperature rose to 23.2°C. (a) Suppose the experiment is repeated in the same calorimeter but this time using 200 mL of 0.50 M HCl and 200.0 mL of 0.50 M NaOH. Will the T observed he greater than, less than, or equal to that in the first experiment, and why? (b) Suppose that the experiment is repeated once again in the same calorimeter, this time using 100 mL of 1.00 M HCl and 100.0 mL of 1.00 M NaOH. Will the T observed he greater than, less than, or equal to that in the first experiment, and why?
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Substance AG°F (kJ/mol) FeO(s) -255.2 H2(g) Fe(s) H20(1) Pb(s) -237.2 02(g) H2SO4(aq) PbSO4(s) -744.5 -813.0 2Pb(s) +O,(g) + 2HS0,(aq) + 2H,SO4 04(aq) – 2PbSO,(s) + 2H,0(1) E°cell=