CH2 Revision (Alcohols)

Created by: Dominic_Sargent
Created on: 05-06-16 11:24

What is meant by volatility?

This is the tendency for a liquid to evaporate.

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Boiling temperatures of alcohols?

Since alcohols have an O-H group, they readily hydrogen bond between molecules, they therefore have higher boiling temperatures compares to corresponding hydrocarbons.

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What is the boiling temperature of Ethanol?

80 degrees

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Are Alcohols soluble in water?

Yes, as they readily hydrogen bond with the water molecules.

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Ethane + Steam -- Ethanol conditions

300 degrees at a pressure of 60 - 70 atmospheres

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Maximum yield for Ethanol production?

The forward reaction is exothermic so a low temperature is favored, however this also decreases the rate of the reaction. High pressure is favored, but this is expensive. A catalyst would increase the rate of reaction without affecting the yield.

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Products for dehydrating an alcohol?

An alkene and water.

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Oxidation of primary alcohols

The usual oxidizing agent is acidified potassium dichromate (VI). The alcohol, oxidizing agent and sulfuric acid are heated under reflux. Colour change is orange to green. A carboxylic acid is formed.

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Alcohol consequences?

Liver damage

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Other cards in this set

Card 2

Front

Boiling temperatures of alcohols?

Back

Since alcohols have an O-H group, they readily hydrogen bond between molecules, they therefore have higher boiling temperatures compares to corresponding hydrocarbons.

Card 3

Front

What is the boiling temperature of Ethanol?

Back

Card 4

Front

Are Alcohols soluble in water?

Back

Card 5

Front

Ethane + Steam -- Ethanol conditions

Back

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CH2 Revision (Alcohols)