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Molality of pure ethyl alcohol (density ...

Molality of pure ethyl alcohol (density 0.92 g ml) is :

A

15 m

B

92 m

C

46 m

D

20 m

Text Solution

Verified by Experts

The correct Answer is:
D
Mass of ethyl alcohol in 1000 ml
`=1000xx0.92=920g`
Molality `=(920)/(46)=20m` (Molecular mass of `C_(2)H_(5)OH=46`).
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