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Ethanol is the substance commonly called alcohol. The density of liquid alcohol is 0.8 gm/ml at 293 K If 1.2 mole of ethanol are needed for a particular experiment, what volume of ethanol should be measured out?

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69 ml

57.5 ml

47.9 ml

55.2 ml

answer is C.

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Detailed Solution

We know that volume is the ratio of mass to the density. Thus, the required volume will be;

$\frac{1.2 \times 46}{0.8} = 69 ml$

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