What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)? Assume ideal behavior.

If the overall atmospheric pressure is 1.00 atm, then the pressure of just the nitrogen in the air is 0.78 atm. The pressure of the oxygen in the air is 0.21 atm. The partial pressure of a gas is the contribution that gas makes to the total pressure when the gas is part of a mixture.

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