A mixture of He and Ne at a total pressure of 0.95 atm is found to contain 0.32 mol of He and 0.56 mol of Ne. The partial pressure of Ne is ___ atm

Question

rushwr · Answer

$$P _{total} = P _{He} + P _{Ne}$$
Partial pressure of a gas = molar fraction x total pressure

anonymous · Answer

How do i find the molar fraction?

rushwr · Answer

Molar fraction = no. of moles of one component divided by the total no. of moles of all the compounds in the mixture

rushwr · Answer

The molar fraction of Ne would be 
$$\frac{ 0.56mol }{ (0.56 + 0.32)mol }$$

anonymous · Answer

Awesome! so then i take that times 0.95?

rushwr · Answer

yep