Answer
0.50 mole of C.
Work Step by Step
1. Find the conversion factor:
Each $C_2H_6$ molecules has 2 Carbon atom. Therefore:
$\frac{2 moles C}{1moleC_2H_6}$
2. Calculate the amount of C in moles:
$0.25 mole C_2H_6 \times \frac{2molesC}{1moleC_2H_6} = 0.50 mole C$
