Final answer:
To calculate the mass of O2 consumed in the complete combustion of C4H8O, write the balanced equation and use the mole ratio. Divide the given mass of C4H8O by its molar mass to calculate the moles of C4H8O. Then, use the mole ratio from the balanced equation to find the moles of O2 consumed. Multiply the moles of O2 consumed by the molar mass of O2 to find the mass of O2 consumed.
Step-by-step explanation:
To calculate the mass of O2 consumed in the complete combustion of C4H8O, we first need to write the balanced equation. The combustion of C4H8O can be represented by the equation:
C4H8O + 6O2 → 4CO2 + 4H2O
From the equation, we can see that for every 6 moles of O2 consumed, 4 moles of CO2 are produced. To find the mass of O2 consumed, we can use the molar mass of O2 (32.00 g/mol). First, calculate the moles of C4H8O by dividing the given mass by its molar mass:
Moles of C4H8O = 72.2 g / (12.01 g/mol + 4(1.01 g/mol) + 8(16.00 g/mol))
Once you have the moles of C4H8O, you can use the mole ratio from the balanced equation to find the moles of O2 consumed:
Moles of O2 consumed = Moles of C4H8O x (6 moles O2 / 1 mole C4H8O)
Finally, multiply the moles of O2 consumed by the molar mass of O2 to find the mass of O2 consumed:
Mass of O2 consumed = Moles of O2 consumed x molar mass of O2