The composition (in mole percent) of the atmosphere is 78.1% N2, 21.0% O2, and 0.9% Ar. What is the partial pressure of each gas when the barometric pressure is 754.1 mm Hg?

N2 = 588.95 mm Hg

O2 = 158.36 mm Hg

Ar = 6.787 mm Hg

Explanation:

Their percentage represents their mole fraction.

N2= 78.1% = 0.781

O2 = 21.0% = 0.21

Ar = 0.9% = 0.009

Barometric pressure is 754.1 mm Hg

Partial pressure for each will be,

For N2 = 0.781 x 754.1 = 588.95 mm Hg

For O2 = 0.21 x 754.1 = 158.36 mm Hg

For Ar = 0.009 x 754.1 = 6.787 mm Hg

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.