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  • Created by: ellxe
  • Created on: 14-04-16 18:20
What chemical is often used in perfume?
Esters
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How are esters made?
By esterification. You heat carboxylic acid with an alcohol.
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What is the esterification equation?
Acid + Alcohol = Ester + Water
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What properties do perfumes need?
Easily evaporates - needs to smell! Non-toxic - no poison! Doesn't react with water - would react with sweat! Doesn't irritate the skin - or couldn't be applied directly. Insoluble in water - would wash off
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Describe a solid's structure
Strong forces between bonds. Regular lattice structure. Definite shape and volume - don't flow. Particles vibrate - hotter = more vibation.
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Describe a liquid's structure
Some force of attraction between bonds. Free to move past each other, but tend to stick together. Don't keep a definite shape and will flow to the bottom of a container to fill it. Particles are constantly moving with random motion. Hotter = faster
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Describe a gases structure
No force of attraction between them. Free to move - only interaction is collision. Don't keep a definite shape. Move constantly with random motion. Hotter = faster
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What is the key to how we smell stuff?
Volatility.
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Other cards in this set

Card 2

Front

How are esters made?

Back

By esterification. You heat carboxylic acid with an alcohol.

Card 3

Front

What is the esterification equation?

Back

Preview of the front of card 3

Card 4

Front

What properties do perfumes need?

Back

Preview of the front of card 4

Card 5

Front

Describe a solid's structure

Back

Preview of the front of card 5
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