# What is the mole fraction of oxygen gas in air see the table on the left )?

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## What is the mole fraction of oxygen gas in air See table for the composition of dry air?

Air is a mixture of several gases, where the two most dominant components in dry air are 21 vol% oxygen and 78 vol% nitrogen.

Components in Dry Air.

Components in dry air Krypton Kr 0.0001 83.798

## How do you find the mole fraction of oxygen in air?

The mole fraction of oxygen gas is calculated by dividing the number of moles of oxygen gas by the total number of moles of gas present in the sample. As you know, Avogadro’s constant allows you to convert the number of molecules to moles.

## What is the mole fraction of 02?

The mole fraction of oxygen in exhaled air is 0.147 , and the mole percent is 14.7% . χoxygen – the mole fraction of oxygen.

## How do you find the mole fraction?

Calculate the mole fraction of solute by dividing the moles of solute by the total number of moles of substances present in solution.

1. the mass percentage.
2. the mole fraction.
3. the molarity.
4. the molality.
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## What is a mole of air?

As an example, the average molar mass of dry air is 28.97 g/mol.

## What is the mole percent o2 in the mixture of 7g of N2 and 8g of o2?

the mole percentage of O2 in a mixture of 7g of N2 and 8g of O2 is? (ans:50%)

= 1/2.