# Problem: A mixture of 8.1 g CH4 and 8.1 g Xe is placed in a container and the total pressure is found to be 0.45 atm .Find the partial pressure of CH4.

###### FREE Expert Solution

We’re being asked to calculate the partial pressure of CH4 in a mixture of Xe and CH4

Recall that the partial pressure of a gas (PGas) in a mixture is given by:

$\overline{){{\mathbf{P}}}_{{\mathbf{gas}}}{\mathbf{=}}{{\mathbf{X}}}_{{\mathbf{gas}}}{{\mathbf{P}}}_{{\mathbf{total}}}}$

where χGas = mole fraction of the gas and Ptotal = total pressure of the gas mixture

The mole fraction of the gas is then given by:

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###### Problem Details

A mixture of 8.1 g CH4 and 8.1 g Xe is placed in a container and the total pressure is found to be 0.45 atm .

Find the partial pressure of CH4.