250 mL of hard water having hardness due to Caso is passed

Last updated: 7/3/2023

250 mL of hard water having hardness due to Caso is passed through anion exchange re in R OH 2 and water coming out of resin required 20 mL of 0 001 M H2SO4 for its titration Thus hardness of water in ppm of CaSO4 is of Caso 136 g