Propane + Oxygen

Propane + Oxygen ➜ Carbon Dioxide + water
C₃H₈ + 5O₂ ➜ 3CO₂ + 4H₂O
molecular weights
C = 12
H = 1
O = 16
C₃H₈ = 3•12+8 = 44
5O₂ = 10•16 = 160
3CO₂ = 3(12+32) = 132
4H₂O = 4•18 = 72
check 44 + 160 = 132 + 72 = 204

1 mole of C₃H₈ + 5 moles of O₂ ➜ 3 mole of CO₂ + 4 moles of H₂O
44 grams of C₃H₈ + 160 grams of O₂ ➜ 132 grams of CO₂ + 72 grams of H₂O

heat of combustion is 50 kJ/g or 50 MJ/kg

Propylene/Propene + Oxygen ➜ Carbon Dioxide + water
2C₃H₆ + 9O₂ ➜ 6CO₂ + 6H₂O
molecular weights
C = 12
H = 1
O = 16
2C₃H₆ = 2(3•12+6) = 84
9O₂ = 9•32 = 288
6CO₂ = 6(12+32) = 264
6H₂O = 6•18 = 108
check 84 + 288 = 264 + 108 = 372

2 mole of C₃H₆ + 9 moles of O₂ ➜ 6 mole of CO₂ + 6 moles of H₂O
84 grams of C₃H₆ + 288 grams of O₂ ➜ 264 grams of CO₂ + 108 grams of H₂O

Propene + hydrogen ➜ propane
C₃H₆ + H₂ ➜ C₃H₈
molecular weights
C = 12
H = 1
O = 16
C₃H₆ = 3•12+6 = 42
C₃H₈ = 3•12+8 = 44
1 mole of C₃H₆ + 1 moles of H₂ ➜ 1 mole of C₃H₈
42 grams of C₃H₆ + 2 grams of H₂ ➜ 44 grams of C₃H₈