Additional info: The higher is the charge density the more concentrated is the charge and the more water molecules for e.g. can be attracted around the ion:
2006-11-10 11:27:39 · 3 answers · asked by kbafc 1 in Science & Mathematics ➔ Chemistry
The size of the ion is an important consideration. K+ is bigger than Na +.
In ion exchange operation, sodium is the most common ion to "slip" from the resin.
2006-11-10 12:16:22 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This refers to a water softener. I'd assume that this water has K in it. Salt (NaCl) is used to swap ions with those removed from the water by the resin. When the resin gets clogged it is flushed with salt water, removing the minerals that make the water hard (looks like 'K' here), cleaning out the resin for further use.
2006-11-10 12:11:45 · answer #2 · answered by teachr 5 · 0⤊ 0⤋
K+ has a lower electronegativity and is therefore more willing to give up its electron. I don't know what resin means or what water molecules have to do with this, but water molecules are polar.. so maybe htat helps?
2006-11-10 11:55:24 · answer #3 · answered by scurvybc 3 · 0⤊ 0⤋