Answer:
35.7%
Explanation:
The percent yield is calculated by the formula:
[(actual yield) / (theoretical yield)] * 100
In this case, the actual yield is 0.15 grams, and the theoretical yield is 0.42 grams. So, putting these values into the equation, we have:
[tex]\frac{0.15}{0.42} *100=0.357*100=35.7[/tex]
Thus, the percent yield of [tex]H_2[/tex] is 35.7%.
Hope this helps!