Chemistry, asked by harmanmehla1211, 1 year ago

what is the relation between calcium and magnesium ions for calculating hardness

Answers

Answered by karthik4894
0
The combined concentration of calcium and magnesium ions is considered to be the measure of water hardness. The method uses a very large molecule called EDTA which forms a complex with calcium and magnesium ions. EDTA is short for ethylenediaminetetraacetic acid.

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Answered by hackercall
0
Total permanent water hardness is calculated with the following formula:
TOTAL PERMANENT HARDNESS = CALCIUM HARDNESS + MAGNESIUM HARDNESS.
The calcium and magnesium hardness is the concentration of calcium and magnesium ions expressed as equivalent of calcium carbonate.

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