Problem: The density of a 21.0% by mass ethylene glycol (C2H6O2 ) solution in water is 1.04 g/mL.Find the molarity of the solution.

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Assuming that we have 100 g.

21.0% by mass ethylene glycol (C2H6O2) solution → 21.0 g C2H6O2

Step 1. mole ethylene glycol

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The density of a 21.0% by mass ethylene glycol (C2H6O2 ) solution in water is 1.04 g/mL.

Find the molarity of the solution.

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