During the electrolysis of molten sodium chloride, the time required to produce 0.10 mol of chlorine gas using a current of 3 amperes is ______.

Moles of \( \mathrm{Cl}_2 \) = 0.10 mol. Electrons required = \( 2 \times 0.10 = 0.20 \text{ mol} \). \( Q = n \times F = 0.20 \times 96500 = 19300 \text{ C} \). Time \( t = \frac{Q}{I} = \frac{19300}{3} \text{ s} = 6433.3 \text{ s} \approx 107.2 \text{ minutes} \approx 110 \text{ minutes} \).