1000g of a water sample contained a calcium salt equivalent to 18 of CaSO_(4) The hardness of that water sample is

1000g of a water sample contained a calcium salt equivalent to 18 of C

1.	1000g of a water sample contained a calcium salt equivalent to 18 of CaSO_(4) The hardness of that water sample is
Answer» 100 ppm 500 ppm 1000 ppm 220,000 ppm Solution :HARDNESS `=("solute WEIGHT")/("solution weight")xx10^(6)`