A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of of oxygen is 4.1 atm and of carbon dioxide is 2.35 atm. If the total pressure inside the container is 12.85, what is the partial pressure of helium?
Question
A container holds three gases: oxygen, carbon dioxide, and helium. The partial pressures of of oxygen is 4.1 atm and of carbon dioxide is 2.35 atm. If the total pressure inside the container is 12.85, what is the partial pressure of helium?
Solution
To find the partial pressure of helium, we need to subtract the partial pressures of oxygen and carbon dioxide from the total pressure.
Step 1: Add the partial pressures of oxygen and carbon dioxide. 4.1 atm (oxygen) + 2.35 atm (carbon dioxide) = 6.45 atm
Step 2: Subtract this sum from the total pressure to find the partial pressure of helium. 12.85 atm (total pressure) - 6.45 atm (oxygen + carbon dioxide) = 6.4 atm
So, the partial pressure of helium is 6.4 atm.
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