0o Turkcell 3G03:22@ %27Dmoiar voiume or tne etnanor(d 0.789 g/cm'; d-1.00 g cmr"; Mw for water-18 gmot', ethanol-46.07 g mot')5. The addition of 5.00 g of a compound to 250 g ofnaphthalene lowered the freezing point of naphthalene by0.780 K. Calculate the molar mass of the compound.(K6.94 K.kg/mol for naphthalene)6. The vapour pressure of a liquid in the temperature range 200K to 260 K was found to fit the expression In(p/Torr) - 18.361- 3036,8/(T/K). Calculate the enthalpy of vaporization of theliquid.7. At 25" C, water rises through 7.36 cm in a capillary of radius0.20 mm. Calculate its surface tension at this temperature.(density of water is 0.9971 and gravity is 9.81 m/s')lenovo

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Answered: 5. The addition of 5.00 g of a compound…

5. The addition of 5.00 g of a compound to 250 g of naphthalene lowered the freezing point of naphthalene by 0.780 K. Calculate the molar mass of the compound. (K,6.94 K.kg/mol for naphthalene)

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter84: Fractional Distillation, Azeotropes

Section: Chapter Questions

Problem 2P

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

0o Turkcell 3G
03:22
@ %27D
moiar voiume or tne etnanor
(d 0.789 g/cm'; d-1.00 g cmr"; Mw for water-18 g
mot', ethanol-46.07 g mot')
5. The addition of 5.00 g of a compound to 250 g of
naphthalene lowered the freezing point of naphthalene by
0.780 K. Calculate the molar mass of the compound.
(K6.94 K.kg/mol for naphthalene)
6. The vapour pressure of a liquid in the temperature range 200
K to 260 K was found to fit the expression In(p/Torr) - 18.361
- 3036,8/(T/K). Calculate the enthalpy of vaporization of the
liquid.
7. At 25" C, water rises through 7.36 cm in a capillary of radius
0.20 mm. Calculate its surface tension at this temperature.
(density of water is 0.9971 and gravity is 9.81 m/s')
lenovo

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