Question

0.2 g of CaCO3 was dissolved in dil. HCl and diluted to 200 ml of water. 100 ml of the
solution required 25 ml of EDTA solution for titration. 100 ml of a hard water sample require35 ml of same EDTA solution for titration. 100 ml of the same sample after boiling and filtration required 21 ml of EDTA solution for titration. Calculate the total, permanent and total hardnessof the given water sample.

Answer 1

Answer:

ok than sorry I don't know this answer closely and I am sorry