Question

What is the mole fraction of C12H22011?

Answer 1

The formula is

$\boxed{\sf \chi_A=\dfrac{\chi_A}{\chi_A+\chi_B}}$

Denominator will be same for all

Find that

• moles of solution=12+22+11=45

Now

#C

$\\ \rm\Rrightarrow \chi_C=\dfrac{12}{45}$

#H

$\\ \rm\Rrightarrow \chi_H=\dfrac{22}{45}$

#O

$\\ \rm\Rrightarrow \chi_O=\dfrac{11}{45}$