According the balanced equation for the combustion reaction…

According the balanced equation for the combustion reaction of butane (C4H10) below, how many grams of water can be produced when 1.25 g of butane (C4H10) are burned in a butane lighter. Assume excess oxygen is present. Show the calculation.                              2 C4H10 (g) + 13 O2 (g) → 8 CO2 (g) + 10 H2O (l)