A 4.914-g sample of a mixture of cyclohexane (C6H12) and naphthalene (C10H8) is dissolved in 66.40 of benzene (C6H6). The freezing point of the solution is 1.90°C. Calculate the mass percent of the mixture. (See the table for constants.) Normal Normal Solvent Boiling Point (°C/m) Freezing K (°C/m) Point Water 100 0.52 0.0 1.86 Benzene 80.1 2.53 5.5 5.12 Ethanol 78.4 1.22 -117.3 1.99 Acetic Acid 117.9 2.93 16.6 3.90 Cyclohexane 80.7 2.79 6.6 20.0 Naphthalene 80.6 6.9 208 5.95 Cyclohexane %☐ Naphthalene %

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A 4.914-g sample of a mixture of cyclohexane (C6H12) and naphthalene (C10Hg) is dissolved in 66.40
of benzene (C6H6). The freezing point of the solution is 1.90°C. Calculate the mass percent of the
mixture. (See the table for constants.)
Normal
Normal
Solvent
Boiling Point Kb (°C/m) Freezing K (°C/m)
Point
Water
100
0.52
0.0
1.86
Benzene
80.1
2.53
5.5
5.12
Ethanol
78.4
1.22
-117.3
1.99
Acetic Acid
117.9
2.93
16.6
3.90
Cyclohexane 80.7
2.79
6.6
20.0
Naphthalene 80.6
6.9
208
5.95
Cyclohexane
%
Naphthalene
%
Transcribed Image Text:A 4.914-g sample of a mixture of cyclohexane (C6H12) and naphthalene (C10Hg) is dissolved in 66.40 of benzene (C6H6). The freezing point of the solution is 1.90°C. Calculate the mass percent of the mixture. (See the table for constants.) Normal Normal Solvent Boiling Point Kb (°C/m) Freezing K (°C/m) Point Water 100 0.52 0.0 1.86 Benzene 80.1 2.53 5.5 5.12 Ethanol 78.4 1.22 -117.3 1.99 Acetic Acid 117.9 2.93 16.6 3.90 Cyclohexane 80.7 2.79 6.6 20.0 Naphthalene 80.6 6.9 208 5.95 Cyclohexane % Naphthalene %
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