Concept explainers
Compare the pH of a

Interpretation:
The pH values of
Concept introduction:
A strong acid is an electrolyte that gets completely dissociated when dissolved in water to produce hydronium ions and its conjugate base.
The first ionization of the diprotic acid takes place as:
The second ionization of the diprotic acid takes place as:
The formula to calculate the pH is:
Percent ionization is the percentage of base that gets dissociated upon addition in water. It depends on the hydroxide ion concentration.
Here,
Answer to Problem 85QP
Solution:
The pH of
Explanation of Solution
Given information:
The concentration of both the acids
For
Since, complete dissociation of the acid takes place, the hydronium ion concentration is equal to the amount of acid dissolved. Thus,
Now, substitute this value in equation (3) to calculate the pH of the solution as:
For
Since,
Thus,
Also,
Now, the reaction of the second proton dissociation of sulfuric acid is depicted as:
Prepare an equilibrium table and represent each of the species in terms of
Now, substitute these concentrations in equation (2) as:
Since the value of
Thus,
Calculate the percent dissociation from equation (4) as:
Since, the percent dissociation is more than
Since concentration cannot be negative so,
Thus,
Also,
Use equation (3) to calculate the pH of the solution as:
Therefore, the pH of
The pH values of the monoprotic and diprotic strong acids for equal concentration have been compared. The pH of
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Chapter 16 Solutions
BURDGE CHEMISTRY VALUE ED (LL)
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