How much water should be added to 12 ml alcohol so the concentration o – InterviewSolution

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1.	How much water should be added to 12 ml alcohol so the concentration of solution 3 becomes 12% ?
Answer» Solution :VOLUME of solute = 12 ML Volume of SOLVENT = x mL Volume of solution = (12 + x) mL Volume percentage of solution = `("Volume of solute")/("Volume of solution")xx100` `12=12/(x+12)xx100` `(12(x+12))/12=100` `x+12=100` x = 88 mL

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