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ChemistryChemistry9th Edition

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Chapter 21, Problem 81AE
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Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097

Solutions

Chapter
Section
Problem 1RQ
Problem 2RQ
Problem 3RQ
Problem 4RQ
Problem 5RQ
Problem 6RQ
Problem 7RQ
Problem 8RQ
Problem 9RQ
Problem 10RQ
Problem 1ALQ
Problem 2ALQ
Problem 3ALQ
Problem 4ALQ
Problem 5Q
Problem 6Q
Problem 7Q
Problem 8Q
Problem 9Q
Problem 10Q
Problem 11Q
Problem 12Q
Problem 13Q
Problem 14Q
Problem 15Q
Problem 16Q
Problem 17Q
Problem 18Q
Problem 19Q
Problem 20Q
Problem 21E
Problem 22E
Problem 23E
Problem 24E
Problem 25E
Problem 26E
Problem 27E
Problem 28E
Problem 29E
Problem 30E
Problem 31E
Problem 32E
Problem 33E
Problem 34E
Problem 35E
Problem 36E
Problem 37E
Problem 38E
Problem 39E
Problem 40E
Problem 41E
Problem 42E
Problem 43E
Problem 44E
Problem 45E
Problem 46E
Problem 47E
Problem 48E
Problem 49E
Problem 50E
Problem 51E
Problem 52E
Problem 53E
Problem 54E
Problem 55E
Problem 56E
Problem 57E
Problem 58E
Problem 59E
Problem 60E
Problem 61E
Problem 62E
Problem 63E
Problem 64E
Problem 65E
Problem 66E
Problem 67E
Problem 68E
Problem 69E
Problem 70E
Problem 71AE
Problem 72AE
Problem 73AE
Problem 74AE
Problem 75AE
Problem 76AE
Problem 77AE
Problem 78AE
Problem 79AE
Problem 80AE
Problem 81AE
Problem 82AE
Problem 83CWP
Problem 84CWP
Problem 85CWP
Problem 86CWP
Problem 87CWP
Problem 88CWP
Problem 89CP
Problem 90CP
Problem 91CP
Problem 92CP
Problem 93CP
Problem 94CP
Problem 95CP
Problem 96CP
Problem 97CP
Problem 98IP
Problem 99IP
Problem 100IP
Problem 101MP
BuyFindarrow_forward

Chemistry

9th Edition
Steven S. Zumdahl
ISBN: 9781133611097
Textbook Problem

Carbon monoxide is toxic because it binds more strongly to iron in hemoglobin (Hb) than does O2. Consider the following reactions and approximate standard free energy changes:

     Hb   +   O 2   →   HbO 2   Δ G °   =   − 70 kJ Hb   +   CO   →   HbCO   Δ G °   =   − 80 kJ

  Using these data, estimate the equilibrium constant value at 25°C for the following reaction:

     HbO 2   +   CO   ⇌   HbCO   +   O 2

Interpretation Introduction

Interpretation:

The equilibrium constant for the given reaction is to be calculated.

Concept introduction:

Chemical equilibrium is a state of a system in which the rate of forward and backward reactions is equal. It is affected by various factors such as concentration of reactants or products, temperature, pressure etc.

Explanation

The standard free energy change ΔGο for the reaction is -10 kJ_ .

The given reactions are,

Hb+O2→HbO2                   ΔG1ο=−70 kJ (1)

Hb+CO→HbCO                 ΔG2ο=−80 kJ (2)

The equation (1) is reversed and added with equation (2) and the resultant equation is,

HbO2+CO→HbCO+O2 (3)

The standard free energy change ΔGο for equation (3) is calculated by the formula,

ΔGο=ΔG1ο+ΔG2ο

Where,

  • ΔG1ο is the standard free energy change for equation (1).
  • ΔG2ο is the standard free energy change for equation (2).

Reversing the equation (1) will also reverse the sign of ΔG1ο value.

Substitute the values of ΔG1ο and ΔG2ο in the above equation

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Ch-21 P-1RQCh-21 P-2RQCh-21 P-3RQCh-21 P-4RQCh-21 P-5RQCh-21 P-6RQCh-21 P-7RQCh-21 P-8RQCh-21 P-9RQCh-21 P-10RQ
Ch-21 P-1ALQCh-21 P-2ALQCh-21 P-3ALQCh-21 P-4ALQCh-21 P-5QCh-21 P-6QCh-21 P-7QCh-21 P-8QCh-21 P-9QCh-21 P-10QCh-21 P-11QCh-21 P-12QCh-21 P-13QCh-21 P-14QCh-21 P-15QCh-21 P-16QCh-21 P-17QCh-21 P-18QCh-21 P-19QCh-21 P-20QCh-21 P-21ECh-21 P-22ECh-21 P-23ECh-21 P-24ECh-21 P-25ECh-21 P-26ECh-21 P-27ECh-21 P-28ECh-21 P-29ECh-21 P-30ECh-21 P-31ECh-21 P-32ECh-21 P-33ECh-21 P-34ECh-21 P-35ECh-21 P-36ECh-21 P-37ECh-21 P-38ECh-21 P-39ECh-21 P-40ECh-21 P-41ECh-21 P-42ECh-21 P-43ECh-21 P-44ECh-21 P-45ECh-21 P-46ECh-21 P-47ECh-21 P-48ECh-21 P-49ECh-21 P-50ECh-21 P-51ECh-21 P-52ECh-21 P-53ECh-21 P-54ECh-21 P-55ECh-21 P-56ECh-21 P-57ECh-21 P-58ECh-21 P-59ECh-21 P-60ECh-21 P-61ECh-21 P-62ECh-21 P-63ECh-21 P-64ECh-21 P-65ECh-21 P-66ECh-21 P-67ECh-21 P-68ECh-21 P-69ECh-21 P-70ECh-21 P-71AECh-21 P-72AECh-21 P-73AECh-21 P-74AECh-21 P-75AECh-21 P-76AECh-21 P-77AECh-21 P-78AECh-21 P-79AECh-21 P-80AECh-21 P-81AECh-21 P-82AECh-21 P-83CWPCh-21 P-84CWPCh-21 P-85CWPCh-21 P-86CWPCh-21 P-87CWPCh-21 P-88CWPCh-21 P-89CPCh-21 P-90CPCh-21 P-91CPCh-21 P-92CPCh-21 P-93CPCh-21 P-94CPCh-21 P-95CPCh-21 P-96CPCh-21 P-97CPCh-21 P-98IPCh-21 P-99IPCh-21 P-100IPCh-21 P-101MP

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