Answer:
17.47 atm
Explanation:
We need to do some conversions of units to determine this answer
Mixture of gases: He, N₂ Ar
Total pressure: 22.1 atm
Sum of partial pressures of each gas from the mixture = Total pressure
Partial pressure He + Partial pressure N₂ + Partial pressure Ar = 22.1 atm
Partial pressure N₂ = 22.1 atm - Partial pressure He - Partial pressure Ar
We convert partial pressures Ar and He to atm
2475 Torr . 1atm / 760 Torr = 3.25 atm → Partial pressure He
1049 mmHg . 1 atm / 760 mmHg = 1.38 atm → Partial pressure Ar
We replace data:
Partial Pressure N₂ = 22.1 atm - 3.25 atm - 1.38 atm → 17.47 atm
Imagine a square. In an electron dot diagram, the elements symbol is in the center. It represents the nucleus and the inner electrons. The valence electrons are drawn as dots on the sides of the square. These electrons are distributed one on each side, and then paired up. For example, chlorine is in period 17 and has 7 valence electrons. "Cl" would go in the center of the square, and then there would would be two dots on three of the square's sides, and one dot on the other. However, the sides of the square are imaginary, don't draw them.
The answer is D because our body’s go to the restroom, we also throw up, and our respiratory trac takes on oxygen and then we excrete