We’re being asked to calculate for the mole fraction of caffeine (C_{8}H_{10}N_{4}O_{2}) in the solution.

The solution is made up of caffeine (C_{8}H_{10}N_{4}O_{2}) and chloroform (CHCl_{3}) with a concentration of 0.0510 m. Since chloroform is the solvent, we can say that caffeine is the solute.

**Mole Fraction (X)** relates the moles of solute and solvent within a solution:

$\overline{){\mathit{m}}{\mathit{o}}{\mathit{l}}{\mathit{e}}{\mathbf{}}{\mathit{f}}{\mathit{r}}{\mathit{a}}{\mathit{c}}{\mathit{t}}{\mathit{i}}{\mathit{o}}{\mathit{n}}{\mathbf{}}{\mathbf{\left(}}{\mathit{X}}{\mathbf{\right)}}{\mathbf{=}}\frac{\mathbf{m}\mathbf{o}\mathbf{l}\mathbf{e}\mathbf{}\mathbf{o}\mathbf{f}\mathbf{}\mathbf{s}\mathbf{o}\mathbf{l}\mathbf{u}\mathbf{t}\mathbf{e}}{\mathbf{m}\mathbf{o}\mathbf{l}\mathbf{e}\mathbf{}\mathbf{o}\mathbf{f}\mathbf{}\mathbf{s}\mathbf{o}\mathbf{l}\mathbf{u}\mathbf{t}\mathbf{i}\mathbf{o}\mathbf{n}}}$

**We’ll calculate the mole fraction of caffeine using the following steps:**

Caffeine (C_{8}H_{10}N_{4}O_{2}) is a stimulant found in coffee and tea. A solution of caffeine in the solvent chloroform (CHCl_{3}) has a concentration of 0.0510 m.

Calculate the mole fraction of caffeine in the solution.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mole Fraction concept. You can view video lessons to learn Mole Fraction. Or if you need more Mole Fraction practice, you can also practice Mole Fraction practice problems.

What is the difficulty of this problem?

Our tutors rated the difficulty of*Caffeine (C8H10N4O2) is a stimulant found in coffee and tea....*as medium difficulty.

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Our expert Chemistry tutor, Sabrina took 6 minutes and 24 seconds to solve this problem. You can follow their steps in the video explanation above.