The graph below shows the titration of a solution of 0.1 M weak diprotic acid H₂A with 0.1 M NaOH. Identify the major species present in significant amounts at the point marked B. [Select all that apply] pH of solution E 14.0 13.0 12.0 11.0 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 H₂A H₂A+ HA A²- OH™ 0 12 B C D 24 36 48 60 72 volume of base added (mL) 84 E 96

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The graph below shows the titration of a solution of 0.1 M weak diprotic acid H₂A with 0.1 M NaOH. Identify the
major species present in significant amounts at the point marked B. [Select all that apply]
pH of solution
14.0
13.0
12.0
11.0
10.0
9.0
8.0
7.0
6.0
80 350
5.0
4.0
3.0
2.0
1.0
0.0
O H₂A
H₂A+
HA
A²-
OH™
0
12
B
D
24 36 48 60 72
volume of base added (mL)
84
E
96
Transcribed Image Text:The graph below shows the titration of a solution of 0.1 M weak diprotic acid H₂A with 0.1 M NaOH. Identify the major species present in significant amounts at the point marked B. [Select all that apply] pH of solution 14.0 13.0 12.0 11.0 10.0 9.0 8.0 7.0 6.0 80 350 5.0 4.0 3.0 2.0 1.0 0.0 O H₂A H₂A+ HA A²- OH™ 0 12 B D 24 36 48 60 72 volume of base added (mL) 84 E 96
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