Question

The mole fraction of I2 in CCL4 is 0.01. what is molality and molarity of solution?​

Answer 1

Answer:

Explanation:

Mole fraction of I  

2

​

 in C  

6

​

H  

6

​

 is 0.2. The molality of I  

2

​

 in  C  

6

​

H  

6

​

 is:

Hard

Solution

verified

Verified by Toppr

Correct option is

A

3.2

Let the solution be x molal.

Moles of benzene present in 1000g of benzene =  

78

1000

​

=120.82.

Mole fraction of solute =  

x+12.82

x

​

 

=0.2=    

x+12.82

x

​

.

On solving for x we get x=3.2

Answer 2

Answer:

The mole fraction of I2 in CCL4 = 0.01

Molality = ?

Molarity = ?

Given ,

X2 = 0.01

n2 / n1 + n2 = 0.01

____________________

Molality =

$\frac{n2}{mass \: of \: solvent (kg)}$

Molarity =

$\frac{n2}{volume \: of \: sol}$

_____________________

The value of n2 = 0.065

The value of Molality of the solution = 0.065 m

The value of Molarity of the solution = 0. 065 m