Question

A standard hard water sample contains 0.20 mg of CaCO3 per ml. 100 ml of this water consumed 25 ml 0.02 N EDTA. 25 ml sample H2O consumed 12 ml of 0.05 N EDTA. The sample water is boiled and filtered, 50 ml of this boiled water sample consumed 4 ml of 0.01 N EDTA. Calculate the hardness of water.

Answer 1

the hardness of the water is approximately

1501.35

 

mg/L

1501.35mg/L

Step-by-step explanation: