Abreathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide. what is the partial pressure of oxygen at 101.4 kpa if phe = 82.5 kpa and pco2 = 0.4 kpa?

18.5 kPa is the partial pressure of oxygen.

Explanation:

Total pressure of the gases = p =  101.4 kPa

Partial pressure of the helium gas =

Partial pressure of the carbon dioxide gas =

Partial pressure of the oxygen gas =

Applying Dalton's law of partial pressure:

18.5 kPa is the partial pressure of oxygen.

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

the objects have the same charge is correct.

nathan lee