soap Flashcards
1
Q
what happens during ester hydrolysis involving an alkali
A
ester =glycerol + carboxylic acid + alkali to form a salt which is soap
2
Q
what is the structure of soap?
A
non polar tail (hydrophobic) and polar head (hydrophilic)
3
Q
description of soap hydrophobic tail
A
bond easily to greasy stains doesn’t dissolve in water
4
Q
description of soap hydrophilic tail
A
dissolves in water but not greasy stains
5
Q
what happens to the soap molecule when is dissolves in grease?
A
covered in negative charge
6
Q
what is agitation?
A
mixing soap, water and grease together
7
Q
what does agitation cause?
A
ball like structures, knowns as globules
negative charge globules repel each other and the oil/ grease is suspended in water allowing it to be washed away
