Answer:
The answer to your question is 6.61 moles of CO₂
Explanation:
Data
moles of CO₂ = ?
mass of C₃H₈ = 97 g
mass of O₂ = excess
Balanced chemical reaction
C₃H₈ + 5O₅ ⇒ 3 CO₂ + 4H₂O
Process
1.- Calculate the molar mass of C₃H₈
C₃H₈ = (12 x 3) + (1 x 8) = 36 + 8 = 44 g
2.- Convert the mass to moles
44 g of C₃H₈ ------------ 1 mol
97 g of C₃H₈ ------------ x
x = (97 x 1) / 44
x = 97 / 44
x = 2.20 moles
3.- Calculate the moles of CO₂ using proportions and the coefficients of the balanced chemical reaction
1 mol of C₃H₈ ------------------ 3 moles of CO₃
2.2 mol of C₃H₈ -------------- x
x = (2.2 x 3) / 1
x = 6.61 moles of CO₂
