A sample of river water on analysis was found to contain 61.1, 13.7, 219.6, 46.5, 18.9 mg/lit of Ca2+, Mg2+, HCO3-, SO42- , Cl- ions. Besides this the sample of water also contains Na+ ion. What is the concentration of Na+ ?

Dear Rohit,

By Balancing the cations and anions in the watre sample we can evaluate the composition of Na+

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