From the previous problem, it requires 60 mol of Na+ from Ca2+ and 12 mol of Na+ from Mg2+
Calculating the mass of NaCl:
MM of NaCl is 58.45 g/mol
Hard water contains Ca2+, Mg2+, and Fe2+, which interfere with the action of soap and leave an insoluble coating on the insides of containers and pipes when heated. Water softeners replace these ions with Na+. Keep in mind that charge balance must be maintained.
If the sodium is added to the water softener in the form of NaCl, how many grams of sodium chloride are needed?
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