A gas mixture with a total pressure of 750 mmHg contains each of the following gases at the indicated partial pressures: , 265 mmHg; Ar 134 mmHg; and ,O2 157 mmHg; The mixture also contains helium gas.
You have two problems. The first is you didn't identify the gas with 265 mm Hg pressure. The second is you didn't ask a question. I will assume the 265 mm Hg gas is just X and I will assume the question is, "What is the pressure of He."
Ptotal = PX + PAr + PO2 + PHe.
Substitute and solve for PHe.
189 he?
To find the partial pressure of helium gas in the mixture, we need to consider that the total pressure of the gas mixture is 750 mmHg.
Given:
Partial pressure of N2 (nitrogen gas) = 265 mmHg
Partial pressure of Ar (argon gas) = 134 mmHg
Partial pressure of O2 (oxygen gas) = 157 mmHg
We can calculate the partial pressure of helium gas by subtracting the sum of the partial pressures of the other gases from the total pressure.
Partial pressure of helium gas = Total pressure - (Partial pressure of N2 + Partial pressure of Ar + Partial pressure of O2)
Partial pressure of helium gas = 750 mmHg - (265 mmHg + 134 mmHg + 157 mmHg)
Partial pressure of helium gas = 750 mmHg - 556 mmHg
Partial pressure of helium gas = 194 mmHg
Therefore, the partial pressure of helium gas in the mixture is 194 mmHg.
To find the partial pressure of helium gas in the mixture, we'll use the fact that the total pressure of a gas mixture is equal to the sum of the partial pressures of all the gases present.
Given:
Total pressure of the gas mixture = 750 mmHg
Partial pressure of nitrogen gas (N₂) = 265 mmHg
Partial pressure of argon gas (Ar) = 134 mmHg
Partial pressure of oxygen gas (O₂) = 157 mmHg
To find the partial pressure of helium gas (He), we'll subtract the sum of the partial pressures of N₂, Ar, and O₂ from the total pressure of the mixture.
Partial pressure of helium gas (He) = Total pressure of the mixture - (Partial pressure of N₂ + Partial pressure of Ar + Partial pressure of O₂)
= 750 mmHg - (265 mmHg + 134 mmHg + 157 mmHg)
= 750 mmHg - 556 mmHg
= 194 mmHg
Therefore, the partial pressure of helium gas (He) in the gas mixture is 194 mmHg.