The Air Around Us Has 78% Nitrogen and 21% Oxygen

question 4

Multiple Choice

The air around us has 78% nitrogen and 21% oxygen.If the pressure is 1 atm,the pressure due to oxygen is

• A)0.21 atm
• B)0.78 atm
• C)1 atm
• D)0.5 atm
• E)0.67 atm

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