Question

the uapour pressure of acetone at 5 6.5°c is 700 maig, what will the eqpour at 25c if the heat of loq podiralization of aceton is 320kymol (Ginen R=6.3147/umol).​

Answer 1

Answer:

let me get a new one day of summer and the following me a lot of fun with your friends and family is

Answer 2

Answer:

The molar mass M

2

of non-volatile substance can be calculated from the following formula.

p

0

p

0

−p

=

W

1

×M

2

W

2

×M

1

Here, p

0

vapour pressure of acetone and p is the vapour pressure of the solution.

M

1

and W

1

are the molar mass and mass of acetone.

M

2

and W

2

are the molar mass and mass of a non-volatile substance.

Substitute values in the above expression.

185

185−183

=

100×M

2

1.2×58

Hence, M

2

=64.38g/mol.

Thus, the molar mass of the non-volatile substance is 64 g/mol (approximately).

Hence, the correct option is B