A newly discovered planet has an atmospheric pressure of 900 mm/Hg. The oxygen concentration is 18%. What is the pO2

162 mmHg

Explanation:

Step 1: Given data

Atmospheric pressure (P): 900 mmHg

Oxygen concentration: 18%

Step 2: Calculate the partial pressure of oxygen (pO₂)

In a gaseous mixture, an oxygen concentration of 18% corresponds to a mole fraction of X(O₂) = 0.18. We can calculate the partial pressure of oxygen using the following expression.

pO₂ = P × X(O₂)

pO₂ = 900 mmHg × 0.18 = 162 mmHg

the only liquid elements at standard temperature and pressure are bromine (br) and mercury (hg). although, elements caesium (cs), rubidium (rb), francium (fr) and gallium (ga) become liquid at or just above room temperature.

explanation:

16

explanation:

the marks go by 4s