Concept explainers
Interpretation:
The titration of acetic acid (CH3COOH) with sodium hydroxide (NaOH), both 0.100 M. The titration curve has to be drawn and four regions of importance have to be labeled.
Explanation of Solution
Addition of
Acetic acid is a weak acid. The initial point in the titration when the base is not added to the system, the system is a weak acid system.
The iCe table can be set up to calculate the
Where,
The
This can be solved by approximation. If
The
Addition of
The neutralization reaction can be written as given,
Calculation of milimole of acid and base:
Making of sRfc table:
The table can be formed as shown below.
The molar ratio of acid and base is
All the strong base is consumed. There are weak acid
Addition of
Calculation of milimole of acid and base:
Making of sRfc table:
The table can be formed as shown below.
The molar ratio of acid and base is
Both
The iCe table can be set up to calculate the
The expression for
The value of
This can be solved by approximation. If
The
Addition of
Calculation of milimole of acid and base and total volume:
Making of sRfc table:
The table can be formed as shown below.
The molar ratio of acid and base is
Now, the
Titration curve:
The titration curve is plotted between volume of base added and the corresponding
The titration curve with four important regions is given below.
Figure 1
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Chapter 16 Solutions
Chemistry
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