Concept explainers
Calculate the pH of a
Interpretation:
The pH of the solution with dissolved salt is to be calculated, with given concentration.
Concept introduction:
The relationship between
The formula to calculate the pOH of the solution from the concentration of hydroxide ions is given as follows:
The relation between pH and pOH is as follows:
The formula to calculate the pH of a solution is:
Answer to Problem 147AP
Solution:
Explanation of Solution
Given information:
The concentration of
In the salt
The cation
Refer to table
The reaction is as follows:
Now, prepare an equilibrium table and represent each of the species in terms of
Now, substitute these concentrations in equation (2) as follows:
Assume
Thus,
Similarly, the anion
Refer to table
The reaction is given as follows:
Now, prepare an equilibrium table and represent each of the species in terms of
Now, substitute these concentrations in equation (3) as follows:
Assume
Thus,
The equilibrium table for this reaction is shown below.
Thus,
Use equation (4) to calculate the pOH of the solution as follows:
Now, use equation (5) to calculate the pH of the solution as follows:
The pH of the salt solution containing
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Chapter 16 Solutions
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