Chemistry, asked by nikitasingh76888, 1 year ago

12 gm of a solid solute dissolved in 90 gm pure water .vapour pressure of the resulting solution is 750mm-hg at 100°c.calucate molecular mass of the solute . [Solute does not undergo any dissociation or association in its aqueous solution]​

Answers

Answered by atikshghuge
3

Answer:

Explanation:

ANSWER

According to raoult's law,  

p  

0

 

p  

0

−p

​  

=  

m×W

w×M

​  

 

Where,  

p  

0

 is Vapour pressure of pure water

p is vapour pressure of solvent

w is weight of solute

m is molecular weight of solute

W is molecular weight of solvent

32

32−31.84

​  

=  

m×200

10×18

​  

 

⇒m=  

0.005

0.9

​  

=180

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