# Chapter 5 - Gases - Questions & Problems: 5.65

#### Work Step by Step

We know that Dalton's Law states that the total pressure of a gas in a mixture is equal to the sum of their partial pressures. We also know that the mole fraction does not have any units. Mathematically, we can express it as $mole\space fraction=\frac{moles\space of\space component}{total \space moles}$

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