Answer to Question #193595 in Chemistry for brooklyn

Question

If you have 9.7 moles of O₂ how many moles of water could you make?

C₃H₈+ 5O₂ → 3CO₂ + 4H₂O

Answer 1

Solution:

Balanced chemical equation:

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

According to the equation above: n(O₂)/5 = n(H₂O)/4

Thus,

n(H₂O) = 4 × n(O₂) / 5 = (4 × 9.7 mol) / 5 = 7.76 mol

n(H₂O) = 7.76 mol

Answer: 7.76 moles of water (H₂O).