What is the molarity of a 25.0% (v/v)aqueous isopropyl alcohol solution? The density of isopropyl alcohol (C₃H₈O,molar mass 60.09 g/mol)is 0.786 g/mL.

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Quizplus · Accepted Answer

To find molarity, first calculate the volume of isopropyl alcohol in 1 L of solution (25% of 1000 mL = 250 mL). Convert this volume to mass using the density (250 mL x 0.786 g/mL = 196.5 g). Then, convert the mass to moles (196.5 g / 60.09 g/mol = 3.27 mol). Since the solution volume is 1 L, the molarity is 3.27 M.

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