25 g of ethyl alcohol is dissolved in 100 ml of water (density = 0.99993 at 20 ^oC). What is the % w\w for the ethyl alcohol in the resulting solution? A)10% B)20% C)25% D)50%

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Quizplus · Accepted Answer

The % w/w is calculated as (mass of solute / mass of solution) * 100. The mass of water is 100 ml * 0.99993 g/ml = 99.993 g. The mass of the solution is 25 g + 99.993 g = 124.993 g. Therefore, % w/w = (25 g / 124.993 g) * 100 ≈ 20%.

25 G of Ethyl Alcohol Is Dissolved in 100 Ml