C7H16+11O2→7Co2+8H2O

Question

Using the balanced equation from question 4 above for unknown fuel/additive that was analyzed by GC-MS, what volume of oxygen (at STP) would be needed to completely react with 15.0 g of your fuel? How many grams of CO₂ could be produced?

Moles of O2 needed (mol):____

Volume of O₂ needed (L):______

Grams of CO₂ produced (g):____

Answer 1

15 g Fuel * (1 mole/g)*(11 moles O₂/1 mole fuel) = moles O₂ (Find g/mole using formula mass)

moles O₂ *(22.4 liters/mole at STP) = liters O₂

moles O₂ * (7 CO₂/11 O₂) * (44 g/mole CO₂) = g CO₂