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Grade 11Physical Chemistry

3g C completely reacts with 5g O2 what is the %age concentration of CO in the product??

Durdana Jahan

7 Years agoGrade 11

1 Answer

Arun

7 Years ago

Solution:

The reaction for the same would be given by:

$3C+2O2\rightarrow 2CO+CO2$

Now the number of moles of C are equal to:

$\frac{3}{12}=\frac{1}{4}$

The number of moles of Oxygen are:

$\frac{5}{16}$

Thus the limiting reagent is C.

And so the mole fraction of CO2 would be equal to:

$\frac{\frac{1}{3}}{\frac{1}{3}+\frac{2}{3}}=\frac{1}{3}$

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