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Question #67a4c

1 Answer

Feb 8, 2018

The mole fraction of He is $\frac{1.06}{3}$ $1.06/3$ and 0.353 as a decimal.

Explanation:

Mole fraction is defined as

$\frac{moles of one component}{total moles of all components}$ $("moles of one component")/("total moles of all components")$

In this case, we have 1.06 mol He and a total of 3 moles of all gases combined.

So, the mole fraction of He is $\frac{1.06}{3}$ $1.06/3$

One can leave it in fraction form, or as a decimal 0.353 (repeating).

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