Answer:
533.2 torr.
Explanation:
The following data were obtained from the question:
Mole of N₂ = 1.45 moles
Moles the He = 0.659 mole
Total pressure = 775 torr
Partial pressure of N₂ =?
Next, we shall determine the mole fraction of N₂. This can be obtained as follow:
Mole of N₂ = 1.45 moles
Moles the He = 0.659 mole
Total mole = 1.45 + 0.659 = 2.109 moles
Mole fraction of N₂ = Mole of N₂ / total mole
Mole fraction of N₂ = 1.45 / 2.109
Mole fraction of N₂ = 0.688
Gina, we shall determine the partial pressure of N₂. This can be obtained as follow:
Total pressure = 775 torr
Mole fraction of N₂ = 0.688
Partial pressure of N₂ =?
Partial pressure of N₂ = total pressure × mole fraction of N₂
Partial pressure of N₂ = 775 × 0.688
Partial pressure of N₂ = 533.2 torr.
Therefore, the partial pressure of N₂ is 533.2 torr.
