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Q.

A solution of $C_{2} H_{6} OH$ and water contains 54% water by mass, then which option(s) are correct for the given solution : [Given density of solution = 1 gm/ml]

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a

Molality = 18.52

b

$X_{C_{2} H_{5} OH} = 0.25$

c

% (w/v) = 46

d

% (w/w) = 46

answer is A, B, C, D.

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Detailed Solution

The values for all the reactions can be calculated as,

(a) $m = \frac{\frac{46}{46}}{54} \times 1000$

(b) $% w / w = 100 - 54$

(c) $X_{C_{2} H_{5} OH} = \frac{1}{1 + 3}$

(d) $% w / v = \frac{46}{100} \times 100$

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