KI dissolves in water but ..
Why does KI dissolve in water but not in tetrachloromethane? [2 marks]
my attempt: KI has a giant ionic structure, ionic interaction will be formed between K+ and delta - O
and between I- and delta +ve H
This is all true because water is a polar molecule
tetrachloromethane is not polar so doesnt dissolve in water??
+rep
my attempt: KI has a giant ionic structure, ionic interaction will be formed between K+ and delta - O
and between I- and delta +ve H
This is all true because water is a polar molecule
tetrachloromethane is not polar so doesnt dissolve in water??
+rep
(edited 12 years ago)
Original post by arvin_infinity
Why does KI dissolve in water but not in tetrachloromethane? [2 marks]
my attempt: KI has a giant ionic structure, ionic interaction will be formed between K+ and delta - O
and between I- and delta +ve H
This is all true because water is a polar molecule
tetrachloromethane is not polar so doesnt dissolve in water??
+rep
my attempt: KI has a giant ionic structure, ionic interaction will be formed between K+ and delta - O
and between I- and delta +ve H
This is all true because water is a polar molecule
tetrachloromethane is not polar so doesnt dissolve in water??
+rep
Yup, mention that like dissolves in like as well (polar solutes dissolve in polar solvents and vice versa).
Original post by thegodofgod
Yup, mention that like dissolves in like as well (polar solutes dissolve in polar solvents and vice versa).
As in KI is polar and tetra.. is non-polar?
Original post by arvin_infinity
As in KI is polar and tetra.. is non-polar?
Original post by thegodofgod
Oh riight! so all ionic compounds are polar ?
Original post by arvin_infinity
Oh riight! so all ionic compounds are polar ?
The more polar a bond is, the more ionic it becomes.
That's why you have compounds which are covalent, with ionic characteristics, e.g. AlCl3, which are very polar, and thus moving away from the covalent side of the spectrum to the ionic side of the spectrum.
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