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Mobile App Chapter 11: Q67P-a (page 263)
Effect of concentration in the titration of weak acid with strong base.Use your spreadsheet from Problem 11-66 to prepare a family of titration curves for pKa = 6, with the following combinations of concentrations: (a) Ca = 20 mM, Cb = 100 mM; (b) Ca = 2 mM, Cb = 10 mM; (c) Ca = 0.2 mM, Cb = 1 mM.
Short Answer
The plot of the family of titration curves for pKa =6 is shown below
(a)
Step by step solution
Equation need to be used to develop spreadsheet
The equation for the fraction of titration of weak acid with strong base
Consider the titration of a weak acid HA (volume=Va, initial concentration=Ca) with a strong base NaOH (volume=Vb, initial concentration=Cb).
The respective values were taken as per the information given equation 11-13 and figure 10-3.and spreadsheet were developed using the information from problem 66
Development of the spreadsheet for Ca = 20 mM, Cb = 100 mM
(a) Spreadsheet for Ca = 20 mM, Cb = 100 mM
Plot for part (a)
From the above table titration curve obtained is plotted below.
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