Question

The following balanced equation shows the formation of ethane (C2H6).

C2H2 + 2H2 C2H6

How many moles of hydrogen are needed to produce 13.78 mol of ethane?
A.3.445 mol
B.6.890 mol
C.27.56 mol
D.55.12 mol

Answer 1

make a ratio of the moles to the stoichiometric coefficient

\(\sf \dfrac{moles~of~H_2}{H_2's~ coefficient}=\dfrac{moles~of~C_2H_6}{C_2H_6's~coefficient}\)

Answer 2

Thank you!

Answer 3

no problem!