It might be easy but i just cant get to the right answer, please show steps to the answer. Correct answer is C
70 = actual yield/theoretical yield * 100
70 = 6/x * 100
x = 8,6 moles of H2
ratio H2:Zn is 1:1 so (correct me if i’m wrong) we’d also have 8,6 moles of Zn
m=8,6 * 91 = 782g
Hope this helps!
Yes ! thank you for the direct way!