Ion exchange column for removal of hardness of water
The cation exchange resin which was used to remove the hardness of water contains ?
After softening of hard water, the cation exchange resin contains ?
To measure the hardness of the water, which solution was used as a complexing agent?
What indicator was used during the titration for measuring the hardness of the water?
At the end point of the titration, the color of the solution turned to blue due to