Answer
$0.50$ mole of $CS_2$ is produced when 2.5 moles of $C$ reacts.
Work Step by Step
1. Find the mole-mole conversion factors:
According to the coefficients: 5 moles $C$ = 1 mole $CS_2$
$\frac{ 5 \space moles \space C}{ 1 \space mole \space CS_2}$ and $\frac{ 1 \space mole \space CS_2}{ 5 \space moles \space C}$
2. Use the mole-mole conversion factors to calculate the amount of equivalent $CS_2$ in moles:
$ 2.5$ moles $C \times \frac{ 1 \space mole \space CS_2}{ 5 \space moles \space C} = 0.50$ mole $CS_2$
