Question

When the air in a testing chamber is specially mixed so that its oxygen content is 10% and its overall air pressure is 400 mm Hg, then PO2 is ________. When the air in a testing chamber is specially mixed so that its oxygen content is 10% and its overall air pressure is 400 mm Hg, then PO2 is ________. 400 mm Hg 82 mm Hg 4 mm Hg 40 mm Hg

Answer 1

When the air pressure in a testing chamber is 400 mm Hg and the oxygen content is 10%, the partial pressure of oxygen (PO2) is calculated as 40 mm Hg.

Step-by-step explanation:

When the air pressure in a testing chamber is 400 mm Hg and the oxygen content is mixed to be 10%, the partial pressure of oxygen (PO2) can be calculated using the formula:

PO2 = (Total pressure of the gas mixture) x (Oxygen content in the mixture)

Therefore, the partial pressure of oxygen in this scenario is:
PO2 = (400 mm Hg) x (0.10) = 40 mm Hg.

This means that the PO2 in the testing chamber is 40 mm Hg when the oxygen content is specially mixed to be 10% of the overall pressure at 400 mm Hg.

Answer 2

PO2 is 40 mmHg

Step-by-step explanation:

PO2 is the partial pressure of oxygen in the testing chamber

Total air pressure = 400 mmHg

% by weight of oxygen = 10%

Partial pressure of oxygen = % by weight of oxygen × total air pressure = 10% × 400 mmHg = 0.1 × 400 mmHg = 40 mmHg