Answer : The moles of carbon needed will be, 13.8 moles
Explanation : Given,
Moles of
= 5.52 mole
Now we have to calculate to moles of carbon.
The given balanced chemical reaction is,

From the balanced chemical reaction, we conclude that
As, 2 mole of
react to give 5 moles of carbon
So, 5.52 mole of
react to give
moles of carbon
Therefore, the moles of carbon needed will be, 13.8 moles