Question

In the following chemical equation, find the mass of o2 required to react completely with a 20g sample of 80% purity by mass c6h12o6.

Answer 1

C6H12O6 + O2 = CO2 + H2O

Molar Mass of O₂ = 32

Molar Mass of C6H12O6 = 180.156

80% of 180.156 = 144.125

20g of 144.125 = 2882.496

= 2882.296 g of O₂