
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 9, Problem 35E
Interpretation Introduction
Interpretation: The reason for all the six atoms in
Concept introduction: When the atomic orbitals overlap with each other in the region where density of electrons is high, then molecular orbitals are formed. Overlap of the atomic orbitals determines the efficiency of the interaction between the atomic orbitals.
Energy of bonding molecular orbitals is less than the nonbonding molecular orbitals.
To determine: The reason for all the six atoms in
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From the following potentials, calculate the activity of Cl- in saturated KCl.
E0 (calomel electrode)= 0.268 V
E (calomel electrode, saturated KCl)= 0.241 V
Calculate the voltage of each of the following cells.
a) Fe(s)/Fe2+ (1.55 x 10-2 M)//Cu2+ (6.55 x 10-3 M)/Cu(s)
b) Pt, H2 (0.255 bar)/HCl (4.55 x 10-4 M), AgCl (sat'd)/Ag
Fe2+ +2e- = Fe E0= -0.44 V
Cu2+ + 2e- = Cu E0= 0.337 V
Ag+ + e- = Ag E0= 0.799 V
AgCl(s) + e- = Ag(s) + Cl- E0= 0.222 V
2H+ + 2e- = H2 E0= 0.000 V
A solution contains 0.097 M Ce3+, 1.55x10-3 M Ce4+, 1.55x10-3 M Mn2+, 0.097 M MnO4-, and 1.00 M HClO4 (F= 9.649 x 104 C/mol).
a) Write a balanced net reaction that can occur between species in this solution.
b) Calculate deltaG0 and K for the reaction.
c) Calculate E and deltaG for the conditions given.
Ce4+ + e- = Ce3+ E0= 1.70 V
MnO4- + 8H+ + 5e- = Mn2+ + 4H2O E0= 1.507 V
Chapter 9 Solutions
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