Well; putting simply, 21%
2.66666666667 is the decimal of oxygen in the air
100%. All of the oxygen that I breathe comes from the air! The answer that you were probably after, but did not ask, was about the percentage of oxygen in the air that we breathe. The questions may sound similar but they are not the same. The answer is a little over 20%.
It's the oxygen. Since oxygen doesn't dissolve into nitrogen - air is a mixture, not a solution - you can't call it the solute and the nitrogen the solvent, which may have been the answer you thought you were going to get.
By mass, it is oxygen.
It is just under 21 %.
Roughly about 21% of air is oxygen.
The mole fraction of oxygen gas in air is approximately 0.21. This means that out of every 1 mole of air, 0.21 moles are oxygen gas molecules.
Air: 78% nitrogen, 21% oxygen, 1% other. We breathe oxygen and other molecules.
Roughly 21% of Earth's atmosphere is made up of oxygen.
FiO2 stands for Fraction of Inspired Oxygen, which represents the percentage of oxygen in the air that is being inhaled. It is commonly used in medical settings to monitor and adjust oxygen therapy for patients.
When phosphorus burns, it consumes about one-fifth (1/5) of the available oxygen in the air. This creates phosphorus pentoxide, a compound formed from the reaction of phosphorus with oxygen.
Oxygen makes up about 21% of the air we breathe. The majority of the rest of the air is nitrogen, which makes up around 78%. Other gases such as argon, carbon dioxide, and trace amounts of other gases make up the remaining 1%.
The approximate mole fraction of nitrogen in the atmosphere is about 0.7808, and the approximate mole fraction of oxygen is about 0.2095. When combined, the mole fraction of nitrogen and oxygen in the atmosphere is approximately 0.9903.
To find the mole fraction of oxygen, first convert the percentages to fractions: 37% oxygen is 0.37 and 63% nitrogen is 0.63. Since the total mole fraction in a mixture is 1, the mole fraction of oxygen would be 0.37/(0.37 + 0.63) = 0.37/1 = 0.37. Therefore, the mole fraction of oxygen in the gas mixture is 0.37.
Oxygen is in the air.
PiO2 (Partial pressure of inspired oxygen) is the pressure of oxygen in the air we breathe. It is an important parameter in respiratory physiology and is influenced by factors such as altitude and the fraction of inspired oxygen (FiO2) in the inhaled air. PiO2 is a key determinant of oxygen availability for gas exchange in the lungs.
all of it that I can get