4. The graph below, which is related to a titration curve, shows the fraction (f) of the stoichiometric amount of acetic acid present as non-ionized CH3COOH and as acetate ion, CH3COO-, as a function of the pH of the solution containing these species. 1.0- HC,H,O, CHO, 09- 08 07- 0.6- 05 04- 0.3- 02- 0.1 9 10 i 12 pH (a) Explain the significance of the point at which the two curves cross. What are the fractions and the pH at that point? (b) Sketch a comparable set of curves for carbonic acid, H2CO3. [Hint: How many carbonate-containing species should appear in the graph? How many points of intersection should there be? at what pH values?) (c) Sketch a comparable set of curves for phosphoric acid, H3PO4 . [Hint: How many phosphate- containing species should appear in the graph? How many points of intersection should there be? at what pH values?] Fractional partof total f
4. The graph below, which is related to a titration curve, shows the fraction (f) of the stoichiometric amount of acetic acid present as non-ionized CH3COOH and as acetate ion, CH3COO-, as a function of the pH of the solution containing these species. 1.0- HC,H,O, CHO, 09- 08 07- 0.6- 05 04- 0.3- 02- 0.1 9 10 i 12 pH (a) Explain the significance of the point at which the two curves cross. What are the fractions and the pH at that point? (b) Sketch a comparable set of curves for carbonic acid, H2CO3. [Hint: How many carbonate-containing species should appear in the graph? How many points of intersection should there be? at what pH values?) (c) Sketch a comparable set of curves for phosphoric acid, H3PO4 . [Hint: How many phosphate- containing species should appear in the graph? How many points of intersection should there be? at what pH values?] Fractional partof total f
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Hi. please please help me with this. I have no idea how to do this. and i need to finish it soon
![4. The graph below, which is related to a titration curve, shows the fraction (f) of the stoichiometric amount
of acetic acid present as non-ionized CH3COOH and as acetate ion, CH3COO-, as a function of the pH of
the solution containing these species.
1.0
HC,H,0,
CH,0,
09-
0.8
07
0.6-
0.5
0.4 -
0.3
02-
0.1 -
1 2 3
8 9 10 11 12
pH
(a) Explain the significance of the point at which the two curves cross. What are the fractions and the pH
at that point?
(b) Sketch a comparable set of curves for carbonic acid, H2CO3. [Hint: How many carbonate-containing
species should appear in the graph? How many points of intersection should there be? at what pH
values?]
(c) Sketch a comparable set of curves for phosphoric acid, H3PO4 . [Hint: How many phosphate-
containing species should appear in the graph? How many points of intersection should there be? at what
pH values?]
Fractional part of total, f](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F970ba5e5-52f7-46b8-858b-147ee25cbadc%2Fc92b68ed-c4c9-4fd8-b123-b15e05c98113%2Fnwhg3ci_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4. The graph below, which is related to a titration curve, shows the fraction (f) of the stoichiometric amount
of acetic acid present as non-ionized CH3COOH and as acetate ion, CH3COO-, as a function of the pH of
the solution containing these species.
1.0
HC,H,0,
CH,0,
09-
0.8
07
0.6-
0.5
0.4 -
0.3
02-
0.1 -
1 2 3
8 9 10 11 12
pH
(a) Explain the significance of the point at which the two curves cross. What are the fractions and the pH
at that point?
(b) Sketch a comparable set of curves for carbonic acid, H2CO3. [Hint: How many carbonate-containing
species should appear in the graph? How many points of intersection should there be? at what pH
values?]
(c) Sketch a comparable set of curves for phosphoric acid, H3PO4 . [Hint: How many phosphate-
containing species should appear in the graph? How many points of intersection should there be? at what
pH values?]
Fractional part of total, f
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