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23. The mass of a non volatile solute of molar mass 40 g

mol-1  that should be dissolved in 114 g of octane to lower its vapour pressure by 20  % is

a. 10g

b. 11. 4 g

c. 9.8 g

d. 12. 8 g

Ans. a

(9)

5/5 - (1 vote)

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