Solutions Question 313

Question: The vapour pressure (at the standard boiling point of water) of an aqueous solution containing 28% by mass of a non-volatile normal solute (molecular mass = 28) will be

Options:

A) 152 torr

B) 608 torr

C) 760 torr

D) 547 torr

Show Answer

Answer:

Correct Answer: B

Solution:

Moles of solute =2828=1; moles of water =1002818=4 V.P. of solution

=PH2O×XH2O=760×45=608,torr



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