Amixture of oxygen, nitrogen, and hydrogen gases exerts a total pressure of 740 mm hg at 0 degrees celcius. the partial pressure of the oxygen is 200 mm hg and the partial pressure of of the nitrogen is 400 mm hg. what is the partial pressure of the hydrogen gas in this mixture?

Hello!
By law of Dalton’s partial pressure the sum of the partial pressures is the total of all the pressures. So if the total is 740mm Hg then 740=400+200+x so solving for x the unknown pressure we get 740-600=140mm Hg.

Hope this helps! Any questions please just ask! Thank you so much!

Explanation:

 We are to write the orbital notation and electronic configuration of sulfur and iron.

The orbital notation shows the filling of electrons into orbitals or sublevels.

Electron configuration  shows the distribution of electrons into shells;

        Number of electrons     Electron configuration     Orbital notation

S                  16                                   2 8 6                      1s² 2s² 2p⁶ 3s² 3p⁴

Fe                26                                2, 8, 14 2           1s² 2s² 2p⁶ 3s² 3p⁶3d⁶4s²