Consider the reaction: PbCl2(s) → Pb2*(aq) + 2 Cl'(aq) AH° = 23.30 kJ/mol and AS° = -12.5 J/K-mol a) When solid PBCI2 is dissolved in water at 25°C, what are the concentrations of Pb2* and Cl at equilibrium? (Hint: Do your ICE chart and Law of Mass Action.) Concentration of Pb2+ : mol/L and %3D Concentration of Cl = mol/L (Do not use superscripts, subscripts, or carets. Write 1.2 x 103 as 1.2x10-3 or 1.2e-3.) b) At 25°C, This reaction is (reactant or product) favored. Justify your answer with the appropriate calculation on the separate sheet of paper. c) The Gibbs free energy at 25°C, when both the concentrations of the lead ion and chloride ion are 1.2 x 10-3M is kJ/mol. Show your calculations on the separate sheet of paper.

Consider the reaction: PbCl2(s) → Pb2(aq) + 2 Cl'(aq) AH° = 23.30 kJ/mol and AS° = -12.5 J/K-mol a) When solid PBCI2 is dissolved in water at 25°C, what are the concentrations of Pb2 and Cl at equilibrium? (Hint: Do your ICE chart and Law of Mass Action.) Concentration of Pb2+ : mol/L and %3D Concentration of Cl = mol/L (Do not use superscripts, subscripts, or carets. Write 1.2 x 103 as 1.2x10-3 or 1.2e-3.) b) At 25°C, This reaction is (reactant or product) favored. Justify your answer with the appropriate calculation on the separate sheet of paper. c) The Gibbs free energy at 25°C, when both the concentrations of the lead ion and chloride ion are 1.2 x 10-3M is kJ/mol. Show your calculations on the separate sheet of paper.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 118CP: Consider the reaction H2(g)+Br2(g)2HBr(g) where H = 103.8 kJ/mol. In a particular experiment, equal...

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Question

Consider the reaction: PbCl2(s) → Pb2*(aq) + 2 Cl (aq)
AH° = 23.30 kJ/mol and AS° =
-12.5 J/K-mol
a) When solid PbCl2 is dissolved in water at 25°C, what are the
concentrations of Pb2* and Cl at equilibrium? (Hint: Do your ICE
chart and Law of Mass Action.)
Concentration of Pb2+:
mol/L and
Concentration of Cl =
mol/L
(Do not use superscripts, subscripts, or carets. Write 1.2 x 10-3 as
1.2x10-3 or 1.2e-3.)
b) At 25°C, This reaction is (reactant or product)
favored. Justify your answer with the
appropriate calculation on the separate sheet of paper.
c) The Gibbs free energy at 25°C, when both the concentrations
of the lead ion and chloride ion are 1.2 x 10-³M is
kJ/mol. Show your calculations on the
separate sheet of paper.

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