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OCHEM HELP!!! IR and NMR spectra are given on the following page for an unknown compound. Find the unknown compound
1.93 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 1:2 1.5:1.4 (x2) 2:4:3:3 :2:2:3:3 1.93 1.42 10 1.48 8
OCHEM HELP!!! IR and NMR spectra are given on the following page for an unknown compound. Find the unknown compound
1.93 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.5 3.4 3.3 3.2 1:2 1.5:1.4 (x2) 2:4:3:3 :2:2:3:3 1.93 1.42 10 1.48 8
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Nelly StrackeLv2
29 May 2019
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Related questions
Please find the 75% equivalence point, 25% equivalence point, Difference in equivalence points, and half equivalence point(pKa1), and molecular weight range? Then based on the results, determine the unknown acid (possibilities: acetic acid, oxalic acid, benzoic acid, maleic acid, malic acid, and KHP).
standardized NaOH(M) is 0.0840±0.0005 and Used unknown acid was 0.2005g. I did titration curve graph, and found the end point as 44.40.
Below is a data of pH vs. NaOH titration:
V(NaOH), mL | pH |
0 | 1.69 |
0.5 | 1.67 |
1 | 1.68 |
1.5 | 1.68 |
2 | 1.69 |
2.5 | 1.7 |
3 | 1.71 |
3.5 | 1.73 |
4 | 1.74 |
4.5 | 1.75 |
5 | 1.76 |
5.5 | 1.77 |
6 | 1.78 |
6.5 | 1.79 |
7 | 1.8 |
7.5 | 1.81 |
8 | 1.82 |
8.5 | 1.84 |
9 | 1.85 |
9.5 | 1.86 |
9.5 | 1.87 |
10 | 1.88 |
10.1 | 1.89 |
10.2 | 1.89 |
10.6 | 1.92 |
11 | 1.93 |
11.2 | 1.94 |
11.5 | 1.95 |
12 | 1.96 |
12.1 | 1.98 |
12.3 | 1.99 |
12.5 | 1.99 |
12.7 | 2 |
12.9 | 2 |
13.1 | 2.01 |
13.3 | 2.01 |
13.5 | 2.02 |
13.7 | 2.03 |
13.9 | 2.04 |
14.1 | 2.05 |
14.3 | 2.06 |
14.5 | 2.07 |
14.7 | 2.08 |
14.9 | 2.09 |
15 | 2.13 |
15.5 | 2.14 |
16 | 2.16 |
16.5 | 2.2 |
17 | 2.23 |
17.5 | 2.26 |
18 | 2.3 |
18.5 | 2.34 |
19 | 2.39 |
19.5 | 2.43 |
20 | 2.48 |
20.5 | 2.54 |
20.7 | 2.6 |
20.9 | 2.63 |
21.1 | 2.65 |
21.2 | 2.66 |
21.4 | 2.69 |
21.6 | 2.72 |
21.8 | 2.74 |
22 | 2.77 |
22.2 | 2.8 |
22.5 | 2.83 |
23 | 2.89 |
23.5 | 2.94 |
24 | 3.01 |
24.5 | 3.08 |
25 | 3.13 |
25.5 | 3.19 |
26 | 3.24 |
26.5 | 3.28 |
27 | 3.34 |
27.5 | 3.39 |
28 | 3.44 |
28.5 | 3.48 |
29 | 3.53 |
29.5 | 3.56 |
30 | 3.61 |
30.2 | 3.64 |
30.4 | 3.65 |
30.6 | 3.66 |
30.8 | 3.67 |
31 | 3.69 |
31.2 | 3.7 |
31.4 | 3.72 |
31.6 | 3.74 |
31.8 | 3.76 |
32 | 3.77 |
32.2 | 3.79 |
32.4 | 3.8 |
32.6 | 3.82 |
32.8 | 3.83 |
33 | 3.83 |
33.2 | 3.86 |
33.4 | 3.87 |
33.6 | 3.89 |
33.8 | 3.91 |
34 | 3.92 |
34.2 | 3.93 |
34.4 | 3.94 |
34.6 | 3.96 |
34.8 | 3.99 |
35 | 4 |
35.2 | 4.01 |
35.4 | 4.03 |
35.6 | 4.05 |
35.8 | 4.06 |
36 | 4.09 |
36.2 | 4.1 |
36.4 | 4.12 |
36.6 | 4.13 |
36.8 | 4.15 |
37 | 4.17 |
37.2 | 4.19 |
37.4 | 4.21 |
37.6 | 4.23 |
37.8 | 4.25 |
38 | 4.27 |
38.2 | 4.29 |
38.4 | 4.31 |
38.6 | 4.34 |
38.8 | 4.35 |
39 | 4.38 |
39.2 | 4.4 |
39.4 | 4.43 |
39.6 | 4.45 |
39.8 | 4.48 |
40 | 4.5 |
40.2 | 4.54 |
40.4 | 4.57 |
40.6 | 4.58 |
40.8 | 4.62 |
41 | 4.65 |
41.2 | 4.69 |
41.4 | 4.71 |
41.6 | 4.78 |
41.8 | 4.81 |
42 | 4.84 |
42.2 | 4.89 |
42.4 | 4.98 |
42.6 | 5.05 |
42.8 | 5.13 |
43 | 5.2 |
43.2 | 5.28 |
43.4 | 5.46 |
43.6 | 5.57 |
43.8 | 5.81 |
44 | 6.11 |
44.2 | 6.74 |
44.4 | 8.42 |
44.6 | 9.17 |
44.8 | 10.14 |
45 | 10.33 |
45.2 | 10.5 |
45.4 | 10.65 |
45.6 | 10.79 |
45.8 | 10.89 |
46 | 10.92 |
46.2 | 10.98 |
46.4 | 11.05 |
46.6 | 11.12 |
46.8 | 11.16 |
47 | 11.21 |
47.2 | 11.23 |
47.4 | 11.26 |
47.6 | 11.3 |
47.8 | 11.33 |
48 | 11.35 |
48.2 | 11.37 |
48.4 | 11.4 |
48.6 | 11.42 |
48.8 | 11.44 |
49 | 11.46 |
49.2 | 11.48 |
49.4 | 11.5 |
49.6 | 11.51 |
49.8 | 11.53 |
50 | 11.54 |