# What is the mole fraction of oxygen in a gas mixture that is 37% oxygen and 63% nitrogen by volume?

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## What is the mole fraction of oxygen?

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

## What is mole fraction in gas?

The mole fraction of any component of a mixture is the ratio of the number of moles of that substance to the total number of moles of all substances present. In a mixture of gases, the partial pressure of each gas is the product of the total pressure and the mole fraction of that gas.

## How do you find mole fraction?

Mole fraction (Xsolute) = moles of solute / (moles of solute + moles of solvent) .

= 1/2.

## What is the mole percentage O2 in the mixture?

Mole percent of oxygen = x1/(x1+x2) *100 = 1/(1+0.5) *100 = 66.66 %……..

## What fraction is oxygen gas in air?

By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

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## What is mole fraction class 12?

Class 12 Chemistry Solutions. Mole fraction. Mole fraction. Mole fraction can be defined as the ratio of number of moles of the component in the solution to the total number of moles of all components in the solution.

## What is the mole formula?

Avogadro’s number is a very important relationship to remember: 1 mole = 6.022×1023 6.022 × 10 23 atoms, molecules, protons, etc. To convert from moles to atoms, multiply the molar amount by Avogadro’s number. To convert from atoms to moles, divide the atom amount by Avogadro’s number (or multiply by its reciprocal).

## How do you find the mole fraction of each component?

In order to be able to calculate the mole fraction of each component in the mixture, you will have to convert the masses given to you to moles. So, to get the mole fraction of a component i of the mixture, all you have to do is divide the number of moles of that component by the total number of moles present.