Question

Pls help on filling out Tritraion of a Polyprotic acid chart

Titration 1 Titration 2 Titration 3 Volume of Acid To Start (Given) Molarity of NaOH (Given) mL of NaOH added at Equivalence Point 1 (EPI) mL of NaOH added at Equivalence Point 2 (EP2) pH at 1/2 EP1 O O O O OOOOOO pH at 1/2 EP2 pka1 pka2 Kot Ko2

Data from lab

Titration #1		Titration #2		Titration #3
mL base added	pH	mL base added	pH	mL base added	pH
1	0.7	1	0.7	1	0.7
2	1.1	2	1	2	0.9
3	1.5	3	1.4	3	1.3
4	1.7	4	1.6	4	1.5
5	1.9	5	1.8	5	1.7
6	2	6	2.1	6	2
7	2.2	7	2.2	7	2.2
8	2.4	8	2.3	8	2.2
9	2.6	9	2.5	9	2.5
10	2.8	10	2.7	10	2.8
11	3.2	11	3.1	11	3
12	3.9	12	3.8	12	3.7
13	4.8	13	4.9	13	4.7
14	5.7	14	5.6	14	5.5
15	6.4	15	6.3	15	6.2
16	6.7	16	6.6	16	6.5
17	6.9	17	6.8	17	6.9
18	7	18	6.9	18	7
19	7.1	19	7.15	19	7.1
20	7.3	20	7.25	20	7.3
21	7.4	21	7.3	21	7.3
22	7.6	22	7.7	22	7.6
23	7.9	23	7.8	23	7.7
24	8.3	24	8.4	24	8.4
25	9	25	9.1	25	9
26	9.9	26	9.9	26	9.9
27	10.8	27	10.8	27	10.7
28	11.5	28	11.6	28	11.5
29	11.9	29	12	29	11.9
30	12.1	30	12.2	30	12
31	12.3	31	12.4	31	12.2
32	12.5	32	12.6	32	12.4
33	12.7	33	12.7	33	12.6
34	12.8	34	12.8	34	12.7
35	12.9	35	12.9	35	12.8
36	13	36	13	36	12.9
37	13	37	13	37	13
38	13	38	13	38	13
39	13	39	13	39	13
40	13	40	13	40	13
41	13	41	13	41	13
42	13	42	13	42	13
43	13	43	13	43	13
44	13	44	13	44	13
45	13	45	13	45	13

Answer 1

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