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What is the molarity when water is added to 4 moles of sodium chloride to make 0.5 liter of solution?
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What is the molarity when water is added to 4 moles of sodium chloride to make 0.5 liter of solution?

User Beardofprey
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If 0.5 L of solution contains 4 mol
then let 1 L of solution contain x mol

⇒ (0.5 L) x = (4 mol) (1 L)

x = (4 mol · L) ÷ (0.5 L)

x = 8 mol

Thus the molarity of the Sodium Chloride solution is 8 mol / L OR 8 mol/dm³.
User Nayan Srivastava
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