20ml of 0.1N Na₂CO3 solution was added to 100ml of a sample of hard water. The filtrate from the above required 3mL of 0.05N H₂SO4 for complete neutralization. Calculate the hardness of the water sample.

20ml of 0.1N Na₂CO3 solution was added to 100ml of a sample of hard

1.	20ml of 0.1N Na₂CO3 solution was added to 100ml of a sample of hard water. The filtrate from the above required 3mL of 0.05N H₂SO4 for complete neutralization. Calculate the hardness of the water sample.
Answer» TION:s7pep7rao7two7rao7rL7fL7tstsilgugufsiglsuflufsuflsugdguugsufsfysslyrgdjxjfjdhhd