A mixture of He Ne and N2 gases has a pressure of 1.943 ATM. If the pressures of He and Ne are 0.137 ATM and 0.566 ATM respectively what is the partial pressure of N2 in the mixture?

To find the partial pressure of N2 in the mixture, we can use Dalton's Law of partial pressures, which states that the total pressure is the sum of the partial pressures of the individual gases. Given the total pressure (1.943 ATM) and the partial pressures of He (0.137 ATM) and Ne (0.566 ATM), we can calculate the partial pressure of N2 as follows:

Partial pressure of N2 = Total pressure - (Partial pressure of He + Partial pressure of Ne)
Partial pressure of N2 = 1.943 ATM - (0.137 ATM + 0.566 ATM) = 1.943 ATM - 0.703 ATM = 1.240 ATM.

So, the partial pressure of N2 is 1.240 ATM.