a container holds four times as many moles of CO2 as O2. if the total pressure in the container is 20. atm, what is the pressure exerted by carbon dioxide?

The answer is "16"

Explanation:

In the question given, it asks about the partial carbon dioxide () pressure, which is directly related to the oxygen () to carbon dioxide () mole ratio, which is 1 to 4.

it is the most commonly accepted one