   Chapter 16.7, Problem 16.7CYU

Chapter
Section
Textbook Problem

The weak base, CIO− (hypochlorite ion), is used in the form of NaCIO as a disinfectant in swimming pools and water treatment plants. What are the concentrations of HCIO and OH− and the pH of a 0.015 M solution of NaCIO?

Interpretation Introduction

Interpretation:

The concentration of HClO and OH- has to be determined and the pH of a 0.015 M solution of NaClO also to be determined.

Concept introduction:

Dissociation constants are the equilibrium constants for the ionization reactions.

For the general acid HA:

HA (aq) + H2O (l) H3O+ (aq) + A-(aq)                 Ka = [H3O+][A-][HA]

For the general base,

B (aq) + H2O (l) BH+(aq) + OH-(aq)               Kb[BH+][OH-][B]

pH Can be calculated using following formula,

pH + pOH = 14.00

Explanation

The equilibrium reaction is as follows.

ClO-(aq) + H2O(l) HClO (aq) + OH-(aq)

The constant for the reaction is as follows.

Kb=  [HClO][OH-][ClO-]

For this reaction enter the concentrations before equilibrium established, the change that occurs as the reaction proceeds to equilibrium and the concentrations hen equilibrium has been established.

ClO(aq) + H2O(l) HClO(aq)       +      OH             0.015                                   0         0C-x         +x+xE(0

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

In what ways is the celestial sphere a scientific model?

Horizons: Exploring the Universe (MindTap Course List)

Describe how bone first develops.

Human Biology (MindTap Course List)

What impact has recombinant DNA technology had on genetics and society?

Human Heredity: Principles and Issues (MindTap Course List) 