Report your results including:   a) volume collected and % ethanol for each fraction   b) % yield of ethanol from molasses   c) % yield ethanol from sugars, assuming approximately half of molasses is reactive sugars.   Show at least one representative calculation for each part (a, b, and c). The relevant reaction is: C12H22O11 (sucrose) -> 4 CH3CH2OH + 4 CO2.   Data:   Fraction 1: 1mL ethanol collected, 0.81g   Fraction 2L 1mL ethanol collected, 0.95g   Fraction 3: 1mL ethanol product collected, 0.97g

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Chapter7: Solutions And Colloids
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Problem 7.44E
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Report your results including:

 

a) volume collected and % ethanol for each fraction

 

b) % yield of ethanol from molasses

 

c) % yield ethanol from sugars, assuming approximately half of molasses is reactive sugars.

 

Show at least one representative calculation for each part (a, b, and c).

The relevant reaction is: C12H22O11 (sucrose) -> 4 CH3CH2OH + 4 CO2.

 

Data:

 

Fraction 1: 1mL ethanol collected, 0.81g

 

Fraction 2L 1mL ethanol collected, 0.95g

 

Fraction 3: 1mL ethanol product collected, 0.97g

Density % EtOH
g/mL
by wt.
0.989
0.982
0.975
0.969
0.962
0.954
0.945
0.935
0.925
0.914
0.903
0.891
0.880
0.868
5
10
15
20
25
30
35
40
45
50
55
60
65
70
Aqueous Alcohol (EtOH) Content
% EtOH
g EtOH
Density
by vol.
per 100
g/mL.
mL.
6.27
4.95
0.856
12.44
9.82
0.843
18.54
14.63
0.831
24.54
19.37
0.828
30.46
24.04
0.826
36.25
28.61
0.823
41.90
33.07
0.821
47.40 37,41
0.818
52.72 41.61
0.815
57.89
45.69
0.813
62.89 49.64 0.810
67.74
53.47
0.807
72.43
57.17
0.804
76.95 60.74
0.789
% EtOH
by wt.
75
80
85
86
87
88
89
90
91
92
93
94
95
100
% EtOH g EtOH
by voi.
per 100
mL
81.30
64.17
85.49
67.48
89.48
70.63
90.25
71.23
91.02
71.84
91.77 72.43
92.53 73.03
93.27
73.62
93.99
74.19
94.72
74.76
95.44 75.32
96.11
75.86
96.79
76.40
100.00
78.9
Transcribed Image Text:Density % EtOH g/mL by wt. 0.989 0.982 0.975 0.969 0.962 0.954 0.945 0.935 0.925 0.914 0.903 0.891 0.880 0.868 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Aqueous Alcohol (EtOH) Content % EtOH g EtOH Density by vol. per 100 g/mL. mL. 6.27 4.95 0.856 12.44 9.82 0.843 18.54 14.63 0.831 24.54 19.37 0.828 30.46 24.04 0.826 36.25 28.61 0.823 41.90 33.07 0.821 47.40 37,41 0.818 52.72 41.61 0.815 57.89 45.69 0.813 62.89 49.64 0.810 67.74 53.47 0.807 72.43 57.17 0.804 76.95 60.74 0.789 % EtOH by wt. 75 80 85 86 87 88 89 90 91 92 93 94 95 100 % EtOH g EtOH by voi. per 100 mL 81.30 64.17 85.49 67.48 89.48 70.63 90.25 71.23 91.02 71.84 91.77 72.43 92.53 73.03 93.27 73.62 93.99 74.19 94.72 74.76 95.44 75.32 96.11 75.86 96.79 76.40 100.00 78.9
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