Structure-Property Relations for Alkanes and Alcohols

CCA! Volume 5

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Structure-Property Relations for Alkanes and Alcohols

Boiling points of alkanes, miscibility of alcohols, and the vapor pressure and viscosity of several organic compounds are demonstrated.

Relation of Structure to Boiling Point of Alkanes

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The boiling point of straight-chain alkanes and isomers of hexane are determined and molecular models of the hydrocarbons are shown.

Relation of Miscibility to Chain Length of Organic Alcohols

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Water is added to ethanol, butanol, and hexanol. Differences in miscibility are demonstrated.

Vapor Pressure

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Pressure exerted by vapor of several organic substances is demonstrated using barometers. Molecular models of the substances are shown.

Viscosity of Liquids

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The viscosities of water, 2-propanol (rubbing alcohol), ethylene glycol (antifreeze) and vegetable oil are compared. The viscosities of water, hexane, octane, 2,2,4-trimethylpentane and 1-pentanol are measured.