Question

2c₆h₆(g) + 15o₂(g) → 12co₂(g) + 6h₂o(g)
2.00 mol c₆h₆ reacts with oxygen according to the reaction above. what volume of water vapor, in liters, forms at stp?
? l h₂o

Explanation:

Step1: Find mole ratio of C₆H₆ to H₂O

From reaction: 2 mol C₆H₆ → 6 mol H₂O, ratio = 6/2 = 3

Step2: Calculate moles of H₂O produced

Moles H₂O = 2.00 mol C₆H₆ × 3 = 6.00 mol

Step3: Convert moles to volume at STP

Volume = 6.00 mol × 22.4 L/mol = 134.4 L

Answer:

134.4