fp Depression |
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MM (g/mol) |
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Lauric Acid |
C12H24O2 |
200.32 |
solvent |
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w/ Benzoic acid |
C7H8O2 |
122.12 |
solute |
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Lab Data |
AM |
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Group # |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
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fp #1 |
45.9 |
44.5 |
43.8 |
43.7 |
43.8 |
43.7 |
42.9 |
43.5 |
45.5 |
44.7 |
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|
|
molality #2 |
1.13 |
1.06 |
0.66 |
1.01 |
1.03 |
1.02 |
1.12 |
1 |
0.053 |
0.992 |
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|
fp #2 |
33.1 |
39.7 |
38.7 |
39.3 |
38.6 |
39.1 |
38.3 |
38.7 |
42.6 |
39.6 |
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|
|
molality #3 |
1.14 |
0.544 |
0.51 |
1.52 |
1.52 |
1.5 |
0.59 |
0.49 |
1.03 |
0.648 |
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|
fp #3 |
35.8 |
41.7 |
39.2 |
37.3 |
35.9 |
37.1 |
39.5 |
40.9 |
36.6 |
41.3 |
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|
molality #4 |
1.59 |
1.53 |
1.48 |
0.551 |
0.52 |
0.5 |
1.47 |
1.46 |
1.52 |
1.65 |
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|
fp #4 |
36.2 |
37.6 |
36.3 |
41.3 |
39.8 |
41.4 |
36.9 |
37.4 |
33.3 |
37.5 |
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mass (g) lauric acid #1 |
4.56 |
4.83 |
4.30 |
5.02 |
4.04 |
4.43 |
4.43 |
4.77 |
5.00 |
4.54 |
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|
fp #1 oC |
45.9 |
44.5 |
43.8 |
43.7 |
43.8 |
43.7 |
42.9 |
43.5 |
45.5 |
44.7 |
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|
|
mass (g) lauric acid #2 |
8.51 |
8.27 |
7.48 |
8.04 |
8.00 |
8.01 |
8.05 |
8.00 |
8.10 |
8.50 |
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|
mass (g) benzoic acid #2 |
1.12 |
1.07 |
0.60 |
0.99 |
1.01 |
1.00 |
1.10 |
0.98 |
0.52 |
1.03 |
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|
molality (Dr.R calc) |
1.08 |
1.06 |
0.66 |
1.01 |
1.03 |
1.02 |
1.12 |
1.00 |
0.53 |
0.99 |
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|
fp #2 oC |
33.1 |
39.7 |
38.7 |
39.3 |
38.6 |
39.1 |
38.3 |
38.7 |
42.6 |
39.6 |
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mass (g) lauric acid #3 |
8.04 |
7.98 |
7.96 |
7.98 |
8.02 |
8.01 |
8.05 |
8.03 |
8.01 |
7.83 |
|
|
mass (g) benzoic acid #3 |
0.52 |
0.53 |
0.5 |
1.48 |
1.49 |
1.5 |
0.58 |
0.48 |
1.01 |
0.62 |
|
|
molality (Dr.R calc) |
0.53 |
0.54 |
0.51 |
1.52 |
1.52 |
1.53 |
0.59 |
0.49 |
1.03 |
0.65 |
|
|
fp #3 oC |
35.8 |
41.7 |
39.2 |
37.3 |
35.9 |
37.1 |
39.5 |
40.9 |
36.6 |
41.3 |
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mass (g) lauric acid #4 |
8.00 |
8.00 |
8.01 |
8.02 |
8.01 |
8.19 |
8.06 |
80.06 |
8.01 |
8.15 |
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|
mass (g) benzoic acid #4 |
1.55 |
1.49 |
1.45 |
0.50 |
0.51 |
0.50 |
1.45 |
1.44 |
1.49 |
1.64 |
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|
molality (Dr.R calc) |
1.59 |
1.53 |
1.48 |
0.51 |
0.52 |
0.50 |
1.47 |
0.15 |
1.52 |
1.65 |
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|
fp #4 oC |
36.2 |
37.6 |
36.3 |
41.3 |
39.8 |
41.4 |
36.9 |
37.4 |
33.3 |
37.5 |
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fp Depression |
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MM (g/mol) |
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|
Lauric Acid |
C12H24O2 |
200.32 |
solvent |
|
|
|
|
|
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|
w/ Benzoic acid |
C7H8O2 |
122.12 |
solute |
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Lab Data |
PM |
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Group # |
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
fp #1 |
41.79 |
45.05 |
46.53 |
46.12 |
47.41 |
47.6 |
43.09 |
44.55 |
45.59 |
43.4 |
45.1 |
43.9 |
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molality #2 |
0.994 |
|
1.02 |
1.09 |
1.01 |
0.82 |
1.02 |
1.02 |
1.02 |
1.18 |
0.77 |
|
fp #2 |
39.22 |
42.73 |
42.68 |
41.53 |
41.32 |
39.51 |
40.70 |
39.52 |
40.35 |
38.40 |
42.00 |
38.30 |
|
molality #3 |
0.499 |
|
0.512 |
0.6 |
0.521 |
0.513 |
0.512 |
0.516 |
0.512 |
0.573 |
0.507 |
|
fp #3 |
45.00 |
38.00 |
44.55 |
41.64 |
|
44.60 |
41.31 |
44.23 |
42.74 |
40.60 |
41.80 |
40.50 |
|
molality #4 |
1.49 |
|
1.54 |
1.62 |
1.38 |
1.5 |
1.54 |
1.54 |
1.54 |
1.47 |
1.4 |
|
fp #4 |
37.60 |
37.22 |
41.94 |
37.00 |
|
37.23 |
36.79 |
37.88 |
36.50 |
37.40 |
38.40 |
35.40 |
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mass (g) lauric acid #1 |
4.76 |
5.00 |
5.00 |
4.16 |
4.16 |
5.04 |
5.99 |
5.01 |
4.54 |
4.73 |
4.55 |
5.35 |
fp #1 oC |
41.79 |
45.05 |
46.53 |
46.12 |
47.41 |
47.6 |
43.09 |
44.55 |
45.59 |
43.4 |
45.1 |
43.9 |
|
mass (g) lauric acid #2 |
8.05 |
8.06 |
8.00 |
8.07 |
7.98 |
8.00 |
8.00 |
8.00 |
8.00 |
8.34 |
8.08 |
8.27 |
mass (g) benzoic acid #2 |
0.98 |
1.10 |
1.00 |
1.08 |
0.98 |
1.00 |
1.00 |
1.00 |
1.00 |
1.20 |
0.76 |
1.28 |
molality (Dr.R calc) |
1.00 |
1.12 |
1.02 |
1.10 |
1.01 |
1.02 |
1.02 |
1.02 |
1.02 |
1.18 |
0.77 |
1.27 |
fp #2 oC |
39.22 |
42.73 |
42.68 |
41.53 |
41.32 |
39.51 |
40.70 |
39.52 |
40.35 |
38.40 |
42.00 |
38.30 |
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mass (g) lauric acid #3 |
8.01 |
8.00 |
8.00 |
8.07 |
8.02 |
8.00 |
8.00 |
8.01 |
8.00 |
7.86 |
8.56 |
8.49 |
mass (g) benzoic acid #3 |
0.52 |
0.49 |
0.30 |
0.59 |
0.51 |
0.50 |
0.50 |
0.51 |
0.50 |
0.55 |
0.53 |
0.59 |
molality (Dr.R calc) |
0.53 |
0.50 |
0.31 |
0.60 |
0.52 |
0.51 |
0.51 |
0.52 |
0.51 |
0.57 |
0.51 |
0.57 |
fp #3 oC |
45.00 |
38.00 |
44.55 |
41.64 |
|
44.60 |
41.31 |
44.23 |
42.74 |
40.60 |
41.80 |
40.50 |
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mass (g) lauric acid #4 |
8.01 |
7.98 |
8.00 |
8.00 |
8.98 |
8.00 |
8.00 |
8.00 |
8.00 |
8.02 |
7.98 |
8.22 |
mass (g) benzoic acid #4 |
1.48 |
1.74 |
1.50 |
1.58 |
1.51 |
1.54 |
1.50 |
1.50 |
1.50 |
1.44 |
1.37 |
1.55 |
molality (Dr.R calc) |
1.51 |
1.79 |
1.54 |
1.62 |
1.38 |
1.58 |
1.54 |
1.54 |
1.54 |
1.47 |
1.41 |
1.54 |
fp #4 oC |
37.60 |
37.22 |
41.94 |
37.00 |
|
37.23 |
36.79 |
37.88 |
36.50 |
37.40 |
38.40 |
35.40 |