Concept explainers
Compare the pH values for
Interpretation:
The pH values of
Concept introduction:
A strong base is an electrolyte, which gets completely dissociated when dissolved in water to produce hydroxide ions and its conjugate acid.
The ionization of a weak base takes place as:
The formula to calculate pOH is:
pH is the measure of the acidity of a solution, which depends on the concentration of hydronium ions and the temperature of the solution. The relationship between pH and pOH is:
Percent ionization is the percentage of the base that gets dissociated upon its addition to water. It depends on the hydroxide ion concentration.
Here,
Answer to Problem 68QP
Solution:
The pH of
Explanation of Solution
Given information:
The concentration of the bases
Since there is complete dissociation of the base, the hydroxide ion concentration is equal to the amount of base dissolved. Thus,
Now, substitute this value in equation (2) to calculate the pOH of the solution, as follows:
Now, calculate the pH using equation (3), as follows:
Thus, pH of
The concentration of
Refer to table
Now, substitute these concentrations in equation (1), as follows:
Since the value of
Thus,
Calculate the percent dissociation from equation (4), as follows:
Since the percent dissociation is less than
Now, use equation (2) to calculate the pOH of the solution, as follows:
Now, use equation (3) to calculate the pH of the solution, as follows:
Therefore, the pH of a
The highpH of
The pH values of a strong base
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Chapter 16 Solutions
Chemistry
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