Question

the partial pressure of oxygen in a sample of air is 452 mm Mercury and the total pressure is 780 mm Mercury what is the mole fraction of oxygen? ​

Answer 1

Mole fraction O₂ = 452 mmHg/ 780mmHg → 0.579

Step-by-step explanation:

Mole fraction is defined as the quotient between Partial Pressure of a gas, in a mixture and the Total Pressure from the mixture

Partial pressure of a gas/ Total pressure

Mole fraction O₂ = 452 mmHg/ 780mmHg → 0.579

Be careful, because mole fraction doesn't have units