Question

Q3.A 100 ml sample of water require 20 ml of 0.02 M EDTA for titration using
EBT as indicator. 100 ml of same water sample boiled and precipitate removed
by filtration, the filtrate requires 9 ml of 0.02 M EDTA for titration. Calculate the
total hardness, permanent hardness and temporary hardness of water sample. [5]​

Answer 1

Answer:

prove that 5+3√2 is an irrational number given that √3 is irrational