Solved

A Sample of Water Has Hardness Expressed as 1

Question 40

Multiple Choice

A sample of water has hardness expressed as 1.6 × 102 ppm Ca2+. The sample is passed through an ion exchange column and the Ca2+ ions are replaced by H+ ions. What is the pH of the water after it has been treated? (1 ppm = 1 g solute/106 g solution)


A) 2.09
B) -.80
C) 1.10
D) 7.00
E) 2.40

Correct Answer:

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