Which of the following is a valid mole ratio from the balanced equation 2C3H6 + 9O2 → 6CO2 + 6H2O?

A. 1mol C3H6 / 2mol CO2

B. 6mol H2O / 9mol 02

C. 2mol C3H6 / 6mol O2

D. 3mol H2O / 2mol CO2

B. 6 mol H₂O/9 mol O₂

Explanation:

The molar ratio uses the coefficients of the formulas in the balanced equation.

Those in front of CO₂ and H₂O are 6 and 9, respectively., so the correct ratio

is 6 mol H₂O/9 mol O₂

For A., the correct ratio is 2 mol C₃H₆/6 mol CO₂.

For C., the correct ratio is 2 mol C₃H₆/9 mol O₂.

For D., the correct ratio is 6 mol H₂O/6 mol CO₂.