About 78%
It is not recommended to use an expired oxygen tank as its safety and effectiveness cannot be guaranteed. It is better to use a tank that is within its expiration date to ensure that you are receiving the proper oxygen therapy.
The percentage of oxygen in sucrose is 51,41549 %.
The percentage of oxygen (in mass) is 29,776 %.
The percentage of oxygen by mass in water is approximately 88.8%.
You breathe out 16.3% oxygen.
The percentage of oxygen in the Earth's atmosphere by mass is approximately 21.
Because ts make your pennis get bigger.
21%
Alveolar air mixes with air in the anatomic dead space on its way, which is rich in oxygen. hence % of oxygen is more in expired air. Thus though amount of CO2 does not decrease, percentage decreases as inspired air contains very less amount of CO2 (0.03%).
The percentage of oxygen near the ground is approximately 21% in normal atmospheric conditions.
It means that there is an insufficient supply of oxygen in the artery. Artery carries oxygen away from the heart.
21%oxygen