C3H6 + O2 = CO2 + H2O
Balanced equation:C3H6 + 4.5 O2 = 3 CO2 + 3 H2O
According to the balanced equation, 21 grams of C3H6 will react with 4.5*(21/42) = 2.25 moles of O2.
Molar mass of O2 = 32 g/mol
Therefore, the mass of O2 required for the reaction will be: 2.25 * 32 = 72 grams
C3H6 + O2 = CO2 + H2O
Balanced equation:
C3H6 + 4.5 O2 = 3 CO2 + 3 H2O
According to the balanced equation, 21 grams of C3H6 will react with 4.5*(21/42) = 2.25 moles of O2.
Molar mass of O2 = 32 g/mol
Therefore, the mass of O2 required for the reaction will be: 2.25 * 32 = 72 grams