Calculate AG°, in kJ, for the reaction:CIO3 (aq) + 6 H*(aq) +3 Pb(s) CIF(aq) + 3 Pb2(aq) + 3 H2O(1)Given that E cell =1.58 VAG =kJReport your answer to three significant figures. Do not include units in your answer.

Answered: Calculate AG°, in kJ, for the reaction:…

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

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 18.44QE: For each of the reactions, calculate E from the table of standard potentials, and state whether the...

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Calculate AG°, in kJ, for the reaction:
CIO3 (aq) + 6 H*(aq) +3 Pb(s) CIF(aq) + 3 Pb2(aq) + 3 H2O(1)
Given that E cell =1.58 V
AG =
kJ
Report your answer to three significant figures. Do not include units in your answer.

Expert Solution

Step 1: Standard Gibbs Free Energy

The change in standard Gibbs free energy $(∆ G^{o})$ for a cell reaction is expressed as:

$∆ G^{o} = - n F E_{c e l l}^{o}$ ......................... (1)

Where:

n is the total number of electrons exchanged.

1 F = 96500 C

$E_{c e l l}^{o}$ is the standard cell potential.

Step 2: Number of Electron Exchanged

$3 \times$ [Oxidation: $P b (s) \to P b^{2 +} (a q) + 2 e^{-}$ ]

Reduction: $C l O_{3}^{-} (a q) + 6 H^{+} (a q) + 6 e^{-} \to C l^{-} (a q) + 3 H_{2} O (l)$

-------------------------------------------------------------------------

Overall: $C l O_{3}^{-} (a q) + 3 P b (s) + 6 H^{+} (a q) \to C l^{-} (a q) + 3 P b^{2 +} (a q) + 3 H_{2} O (l)$

Hence, a total of six electrons are exchanged during the overall reaction.

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Calculate AG°, in kJ, for the reaction: CIO, (aq) + 6 H*(aq) +3 Pb(s) → CI(aq) + 3 Pb2*(aq) + 3 H2O(I) Given that E cell =1.58 V AG°=_ kJ Report your answer to three significant figures. Do not include units in your answer.

Calculate AG°, in kJ, for the reaction: CIO, (aq) + 6 H(aq) +3 Pb(s) → CI(aq) + 3 Pb2(aq) + 3 H2O(I) Given that E cell =1.58 V AG°=_ kJ Report your answer to three significant figures. Do not include units in your answer.