Respuesta :

The formula is

[tex]\boxed{\sf \chi_A=\dfrac{\chi_A}{\chi_A+\chi_B}}[/tex]

Denominator will be same for all

Find that

  • moles of solution=12+22+11=45

Now

#C

[tex]\\ \rm\Rrightarrow \chi_C=\dfrac{12}{45}[/tex]

#H

[tex]\\ \rm\Rrightarrow \chi_H=\dfrac{22}{45}[/tex]

#O

[tex]\\ \rm\Rrightarrow \chi_O=\dfrac{11}{45}[/tex]

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