Chemistry, asked by Divyarathi5106, 1 month ago

If the mole fraction of acetone in water is 0.2 then the mass percentage (w/w) of acetone in the solution will be (Molar mass of acetone = 58 g mol−1)​

Answers

Answered by itsmeemariyakhan2008
0

Mole fraction of solute=  

Total number of moles  of all the solvent

Moles of solute

​  

X_{A}= \frac{mol A}{mol A + mol B}X  

A

​  

=  

molA+molB

molA

​  

 

And

X_{B}= \frac{mol B}{mol A + mol B}X  

B

​  

=   molA+molB

molB

​  

 

Note:

1. In the given mixture, sum of all the mole fractions is equal to one.

XA + XB = 1

2. The multiplication of the mole fraction by 100 gives the mole percentage.

3. Mole fraction is a unitless and dimensionless expression

Explanation:

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