Calculate number of oxygen atoms in 88 g of CO2. Also calculate mass of CO having same number of oxygen atoms.

Calculate number of oxygen atoms in 88 g of CO2. Also calculate mass o

1.	Calculate number of oxygen atoms in 88 g of CO2. Also calculate mass of CO having same number of oxygen atoms.
Answer» Number of moles of CO₂ in 88 g of CO₂ = Mass of CO₂ / Molar mass of CO₂ = 88 g / 44 g/mol = 2 mol CO₂ Since one mole of CO₂contains two moles of oxygen atoms, two moles of CO₂contain four moles of oxygen atoms. Hence, 1 mole of oxygen atoms contains 6.023 ×10²³oxygen atoms. 4 moles of oxygen atoms contain 6.023 × 10²³ × 4 atoms = 2.4092 × 10²⁴ oxygen atoms. Since 1 mole of oxygen atom is present in 1 mole of CO, 4 moles of oxygen atoms are present in 4 moles of CO. Mass of 4 moles of CO = number of moles of CO x gram molecular mass of CO = 4 × (12 + 16) = 4 × 28 = 112g