Answer:
15.5 g or 16 grams of water, 2 SF. Balanced equation is 2 C8H18 + 25 O2 produces 16 CO2 + 18 H20
Step-by-step explanation:Use Ideal Gas law, PV=nRT to find the moles of O2 and then use the mole ratio to find moles of water (0.864 mol), convert moles to mass.