When 3.97 g of a certain molecular compound X are dissolved in 75.0 g of cyclohexane (C,H2), the freezing point of the solution is measured to be 4.7 °C. Calculate the molar mass of X. If you need any additional information on cyclohexane, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and rounded to the correct number of significant digits. Oxt0

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When 3.97 g of a certain molecular compound X are dissolved in 75.0 g of cyclohexane (C,H12), the freezing point of the solution is measured to be 4.7 °C.
Calculate the molar mass of X.
If you need any additional information on cyclohexane, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is
rounded to the correct number of significant digits.
x10
미□
Transcribed Image Text:When 3.97 g of a certain molecular compound X are dissolved in 75.0 g of cyclohexane (C,H12), the freezing point of the solution is measured to be 4.7 °C. Calculate the molar mass of X. If you need any additional information on cyclohexane, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to the correct number of significant digits. x10 미□
molal boiling point
melting
point
(Tm)
boiling
point
(Ть)
°C
molal freezing point
depression constant (Kf)
elevation constant
name
chemical formula
(К»)
°C
°C-kg-mol-1
°C-kg-mol-1
acetic acid
CH3CO2H
17.0
117.9
3.63
3.22
benzene
C6H6
5.538
80.08
5.07
2.64
benzonitrile
C6H5CN
-12.82
191
5.35
carbon
CS2
-111.7
46.2
2.42
disulfide
carbon
CI4
-22.8
76.7
5.26
tetrachloride
cyclohexane
C6H12
6.7
80.7
20.8
2.92
dibenzyl
ether
(C6H5CH2)20
1.8
298
6.17
diethyl
ether
CH3CH20CH2CH3
-116.22
34.4
2.2
ethanol
CH3CH2OH
-114.14
78.24
1.23
ethylene
glycol
(CH2OH)2
-13.0
197.5
3.11
2.26
formamide
NH2COH
2.57
217
4.25
hexane
C6H14
-95.27
68.72
2.9
methanol
CH3OH
-97.5
64.5
2.9
naphthalene
C10H8
80.22
218
7.45
water
H20
99.974
1.86
0.513
Transcribed Image Text:molal boiling point melting point (Tm) boiling point (Ть) °C molal freezing point depression constant (Kf) elevation constant name chemical formula (К») °C °C-kg-mol-1 °C-kg-mol-1 acetic acid CH3CO2H 17.0 117.9 3.63 3.22 benzene C6H6 5.538 80.08 5.07 2.64 benzonitrile C6H5CN -12.82 191 5.35 carbon CS2 -111.7 46.2 2.42 disulfide carbon CI4 -22.8 76.7 5.26 tetrachloride cyclohexane C6H12 6.7 80.7 20.8 2.92 dibenzyl ether (C6H5CH2)20 1.8 298 6.17 diethyl ether CH3CH20CH2CH3 -116.22 34.4 2.2 ethanol CH3CH2OH -114.14 78.24 1.23 ethylene glycol (CH2OH)2 -13.0 197.5 3.11 2.26 formamide NH2COH 2.57 217 4.25 hexane C6H14 -95.27 68.72 2.9 methanol CH3OH -97.5 64.5 2.9 naphthalene C10H8 80.22 218 7.45 water H20 99.974 1.86 0.513
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