Calculate the hardness of a water sample, whose 100 mL required 20mL o

1.	Calculate the hardness of a water sample, whose 100 mL required 20mL of EDTA. 20 mL of calcium chloride solution whose strength is equivalent to 1.05 g of CaCO3 per litre, required 30 mL of EDTA solution.
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Calculate the hardness of a water sample, whose 100 mL required 20mL of EDTA. 20 mL of calcium chloride solution whose strength is equivalent to 1.05 g of CaCO3 per litre, required 30 mL of EDTA solution.

Answer»

I don't know

please FOLLOW me