A mixture of He, Ne. And Ar has pressure of 16.1 atm at 28.0c. If the partial pressure of He is 3.05 atm and that of Ar is 1.16 atm, what is the partial pressure of Ne?

Ptotal = pHe + pNe + pAr

To find the partial pressure of Ne, we can use Dalton's Law of Partial Pressures, which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of each individual gas.

According to the problem, the total pressure of the mixture is 16.1 atm. We also know that the partial pressure of He is 3.05 atm and the partial pressure of Ar is 1.16 atm.

To find the partial pressure of Ne, we can subtract the sum of the partial pressures of He and Ar from the total pressure of the mixture:

Partial pressure of Ne = Total pressure - Partial pressure of He - Partial pressure of Ar

Partial pressure of Ne = 16.1 atm - 3.05 atm - 1.16 atm

Partial pressure of Ne = 11.89 atm

Therefore, the partial pressure of Ne in the mixture is 11.89 atm.