A sample of water has a hardness expressed as 80 ppm of Ca^(2+).This s – InterviewSolution

1.	A sample of water has a hardness expressed as 80 ppm of Ca^(2+).This sample is passed through an ion exchange column and the Ca^(2+) is replaced by H^+ What is the pH of the water after it has been so treated ? [Atomic mass of Ca=40]
Answer» 3 2.7 5.4 2.4 Answer :d

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