Answer:
[tex]66.67\text{ \%}[/tex]Explanation:
Here, we want to get the percent yield of the reaction
Mathematically:
[tex]\text{ Percentage Yield = }\frac{Actual\text{ yield}}{Theoretical\text{ Yield}}\text{ }\times\text{ 100 \%}[/tex]From the question:
The actual yield is 18 mol while the theoretical yield is 27 mol
Substituting the values, we have it that:
[tex]Percentage\text{ Yield = }\frac{18}{27}\text{ }\times\text{ 100 \% =66.67 \%}[/tex]