Introductory Chemistry: An Active Learning Approach
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN: 9781305079250
Author: Mark S. Cracolice, Ed Peters
Publisher: Cengage Learning
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Chapter 18, Problem 19PE
Interpretation Introduction

Interpretation:

The value of equilibrium constant K for the reaction CO(g)+Cl2(g)COCl2(g) is to be calculated.

Concept introduction:

The acids that do not undergo complete dissociation when dissolved in water are known as weak acids. The equilibrium constant in the case of dissociation of a weak acid is known as the acid constant and is denoted by Ka.

Expert Solution & Answer
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Answer to Problem 19PE

The value of equilibrium constant K for the reaction CO(g)+Cl2(g)COCl2(g) is 14.

Explanation of Solution

The equilibrium reaction is shown below.

CO(g)+Cl2(g)COCl2(g)

The volume of the reaction chamber is 3.00L.

The formula to calculate the molar concentration of the compounds is given below.

Molarconcentration=NumberofmolesVolume(L)…(1)

Substitute the value of initial number of moles of CO and the volume of the reaction chamber in equation (1) to calculate the initial molar concentration of CO.

MolarconcentrationofCO=NumberofmolesVolume(L)=9mol3L=3mol/L

Substitute the value of initial number of moles of Cl2 and the volume of the reaction chamber in equation (1) to calculate the initial molar concentration of Cl2.

MolarconcentrationofCl2=NumberofmolesVolume(L)=15mol3L=5mol/L

Substitute the value of final number of moles of Cl2 and the volume of the reaction chamber in equation (1) to calculate the final molar concentration of Cl2.

MolarconcentrationofCl2=NumberofmolesVolume(L)=6.3mol3L=2.1mol/L

The change in concentration of Cl2 is calculated by the formula as shown below.

Changeinconcentration=FinalconcentrationInitialconcentration

Substitute the values of final and initial concentrations of Cl2 in the above equation.

Changeinconcentration=FinalconcentrationInitialconcentration=2.15=2.9mol/L

The negative sign indicates that the concentration of Cl2 is decreasing.

According to the equilibrium reaction, 1mol of Cl2 produces 1mol of COCl2. Therefore, dissociation of 2.9mol of Cl2 produces 2.9mol of COCl2.

The ICE table for the given reaction is shown below.

CO(g)+Cl2(g)COCl2(g)Initial350Reacting2.92.9+2.9Equilibrium0.12.12.9

The value of K can be calculated by the formula given below.

K=[COCl2][CO][Cl2]

Substitute the values of concentrations of CO, Cl2 and COCl2 in the above equation.

K=[COCl2][CO][Cl2]=2.90.1×2.1=13.80914

Therefore, the value of K is 14.

Conclusion

The value of equilibrium constant K for the reaction CO(g)+Cl2(g)COCl2(g) is 14.

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Chapter 18 Solutions

Introductory Chemistry: An Active Learning Approach

Ch. 18 - Prob. 11ECh. 18 - Prob. 12ECh. 18 - Prob. 13ECh. 18 - Prob. 14ECh. 18 - Prob. 15ECh. 18 - Prob. 16ECh. 18 - Prob. 17ECh. 18 - Prob. 18ECh. 18 - Prob. 19ECh. 18 - Prob. 20ECh. 18 - Prob. 21ECh. 18 - Prob. 22ECh. 18 - Prob. 23ECh. 18 - Prob. 24ECh. 18 - Prob. 25ECh. 18 - Consider the following system at equilibrium at...Ch. 18 - Prob. 27ECh. 18 - Prob. 28ECh. 18 - Prob. 29ECh. 18 - Prob. 30ECh. 18 - Prob. 31ECh. 18 - Prob. 32ECh. 18 - Prob. 33ECh. 18 - Prob. 34ECh. 18 - Which direction of the equilibrium...Ch. 18 - Prob. 36ECh. 18 - Prob. 37ECh. 18 - Prob. 38ECh. 18 - Prob. 39ECh. 18 - Consider the following system at equilibrium at...Ch. 18 - Prob. 41ECh. 18 - Prob. 42ECh. 18 - Prob. 43ECh. 18 - Prob. 44ECh. 18 - Prob. 45ECh. 18 - Prob. 46ECh. 18 - Prob. 47ECh. 18 - Prob. 48ECh. 18 - Prob. 49ECh. 18 - Prob. 50ECh. 18 - The equilibrium between nitrogen monoxide, oxygen,...Ch. 18 - The equilibrium constant expression for a given...Ch. 18 - Prob. 53ECh. 18 - For the following system, K=4.86105 at 298K:...Ch. 18 - Prob. 55ECh. 18 - Prob. 56ECh. 18 - Prob. 57ECh. 18 - Question 57 and 58: In Chapter 9, we discussed how...Ch. 18 - Prob. 59ECh. 18 - A student measures the molar solubility of...Ch. 18 - Prob. 61ECh. 18 - Prob. 62ECh. 18 - Find the moles per liter and grams per 100mL...Ch. 18 - Prob. 64ECh. 18 - Prob. 65ECh. 18 - Prob. 66ECh. 18 - Prob. 67ECh. 18 - Ksp for silver hydroxide is 2.0108. Calculate the...Ch. 18 - Prob. 69ECh. 18 - Prob. 70ECh. 18 - Prob. 71ECh. 18 - Prob. 72ECh. 18 - Prob. 73ECh. 18 - Prob. 74ECh. 18 - Prob. 75ECh. 18 - Prob. 76ECh. 18 - Prob. 77ECh. 18 - Prob. 78ECh. 18 - Prob. 79ECh. 18 - Classify each of the following statements as true...Ch. 18 - Prob. 81ECh. 18 - Prob. 82ECh. 18 - Prob. 83ECh. 18 - Prob. 84ECh. 18 - Prob. 85ECh. 18 - Prob. 86ECh. 18 - Prob. 87ECh. 18 - Prob. 88ECh. 18 - Prob. 89ECh. 18 - Prob. 90ECh. 18 - Hard water has a high concentration of calcium and...Ch. 18 - Prob. 18.1TCCh. 18 - Prob. 18.3TCCh. 18 - a What happens to a reaction rate as temperature...Ch. 18 - Prob. 18.5TCCh. 18 - Write a brief description of the relationships...Ch. 18 - Prob. 2CLECh. 18 - Prob. 3CLECh. 18 - Prob. 4CLECh. 18 - Prob. 5CLECh. 18 - Prob. 1PECh. 18 - Prob. 2PECh. 18 - Prob. 3PECh. 18 - Prob. 4PECh. 18 - Prob. 5PECh. 18 - Prob. 6PECh. 18 - Prob. 7PECh. 18 - Prob. 8PECh. 18 - Prob. 9PECh. 18 - Prob. 10PECh. 18 - Prob. 11PECh. 18 - Prob. 12PECh. 18 - What is the molar solubility of calcium fluoride...Ch. 18 - Prob. 14PECh. 18 - Prob. 15PECh. 18 - Prob. 16PECh. 18 - Prob. 17PECh. 18 - Prob. 18PECh. 18 - Prob. 19PE
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