Multiple Choice
A sample of water has hardness expressed as 160 ppm Ca2+. The sample is passed through an ion exchange column and the Ca2+ ions are replaced by Na+ ions. What is the [Na+] in ppm of the water after it has been treated? (1 ppm = 1 g solute/106 g solution)
A) 46.0
B) 92
C) 184
D) 320
E) 80.0
Correct Answer:
Verified
Correct Answer:
Verified
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