A mixture of He, He, Ne, Ne, and Ar Ar has a pressure of 18.8 atm 18.8 atm at 28.0 °C. If the partial pressure of He He is 2.94 atm 2.94 atm and the partial pressure of Ar Ar is 4.27 atm, 4.27 atm, what is the partial pressure of Ne? Ne?

Partial pressure Ne → 11.95 atm

Explanation:

If we state Dalton's law, the sum of partial pressure of each gas, in a mixture of gases, is the total pressure from the mixture:

Gases from the mixture are: He, Ne and Ar

Partial pressure Ar: 4.27 atm

Partial pressre He: 2.94 atm

Partial pressure Ne:?

Total pressure = 18.8 atm

Partial pressure Ar + Partial pressure He + Partial pressure Ne = 18.8 atm

4.27 atm + 2.94 atm + Partial pressure Ne = 18.8 atm

Partial pressure Ne = 18.8 atm - 4.27 atm - 2.64 atm → 11.95 atm