10. Citric acid, C,H0, is a triacid written HyA. The diagram below shows the predominance domains of the acid-base conjugates of all3 of its acidities, The curves represent the concentrations of cach conjugate depending on the pH of the solution. 0.5 4 0.45 1) 2) 3 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 1 2 3 4 5 6 7 8 9 10 pH a. Write the dissociation reactions associated with each acidity of H3A. b. Identify each of the species 1 through 4. c. Using the diagram, find the values of pKal, pKa2, pKa3 associated with each acidity. Concentration (M)

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10. Citrie acid, C,H0, is a triacid written H;A. The diagram below shows the predominance
domains of the acid-base conjugates of all 3 of its acidities, The curves represent the
concentrations of each conjugate depending on the pH of the solution.
0.5
4)
0.45
1)
3
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
1 2 3 4 5 6 7 8 9 10
pH
a. Write the dissociation reactions associated with each acidity of H3A.
b. Identify each of the species 1 through 4.
c. Using the diagram, find the values of pKa1, pKu2, pKa3 associated
with each acidity.
Concentration (M)
Transcribed Image Text:10. Citrie acid, C,H0, is a triacid written H;A. The diagram below shows the predominance domains of the acid-base conjugates of all 3 of its acidities, The curves represent the concentrations of each conjugate depending on the pH of the solution. 0.5 4) 0.45 1) 3 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 1 2 3 4 5 6 7 8 9 10 pH a. Write the dissociation reactions associated with each acidity of H3A. b. Identify each of the species 1 through 4. c. Using the diagram, find the values of pKa1, pKu2, pKa3 associated with each acidity. Concentration (M)
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