Answer:
750 mmHg
Explanation:
From the question given above, the following data were obtained:
Partial pressure of CO₂ (Pₐ) = 250 mmHg
Partial pressure of N₂ (P₆) = 375 mmHg
Partial pressure of He (P꜀) = 125 mmHg
Pressure of the mixture (Pₜ) =?
The pressure of the mixture of the gases can be obtained as follow:
Pₜ = Pₐ + P₆ + P꜀
Pₜ = 250 + 375 + 125
Pₜ = 750 mmHg
Therefore, the pressure of the mixture of the gases is 750 mmHg
