60009976
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Hydrogels are used in disposable nappies. They are fine powders that can absorb up to 500 times their own weight in water.

A hydrogel is a very long molecule with carboxyl groups at regular intervals along its length. A short section of a hydrogel molecule is shown below.

[img]file:///data/user/0/com.microsoft.office.word/files/temp/msohtmlclip/clip_image002.png[/img]

Hydrogels are extremely good at soaking up water because the water molecules are strongly attracted to them.
Using your knowledge of chemistry, comment on how suitable hydrogels would be for absorbing liquids or solutions spilled in a chemistry
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thepunmaster.e
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God I used to hate these , is this for Nat 5 chemistry?
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