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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

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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Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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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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