Question

explain the softening of water by ion exchange process ​

Answer 1

Answer:

The Ion Exchange Process :-

Calcium (Ca2

+) and magnesium

(Mg2

+) ions that cause water hardness

can be removed fairly easily by using

an ion exchange procedure. Standard

water softeners are cation exchange

devices. Cations refer to positively

charged ions dissolved in the water.

Cation exchange involves the

replacement of the hardness ions

with a nonhardness ion.

Water softeners usually use sodium

(Na+) as the exchange ion. Sodium

ions are supplied from dissolved

sodium chloride salt, also called brine.

In the ion exchange process, sodium

ions are used to coat an exchange

medium in the softener. The exchange

medium can be natural “zeolites” or

synthetic resin beads that resemble

wet sand.

As hard water passes through a

softener, the calcium and magnesium

trade places with sodium io

Answer 2

Explanation:

ion exchange involves removing of hardness ion s calcium and magnesium and replacing them with non -hardness ions, typically sodium supplied by dissolved sodium chloride salt or brine....after softening of large quantity of hard water the beads become saturated with calcium and magnesium ions