To find:
The
Answer to Problem 15.70QA
Solution:
Explanation of Solution
1) Concept:
Sulfuric acid is a strong diprotic acid in that one hydrogen atom per molecule ionizes completely
We start with the first ionization reaction that goes to completion.
Therefore, as the second ionization step begins
Ionization of
The increase in
We have to set up a RICE table for the second ionization reaction. Initially
2) Formula:
i)
ii)
3) Given:
Concentration of
4) Calculations:
Reaction | |||
Initial | |||
Change | |||
Equilibrium |
Inserting the equilibrium concentrations in the equilibrium constant expression for
Here,
Solving this equation for x yields a positive value and a negative value.
The negative value for x has no physical meaning because it gives us a negative
The corresponding
Conclusion:
The total hydrogen ion concentration in an
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Chapter 15 Solutions
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