Caffeine C8H10N4O2 is stimulant found in tea and coffee. A sample of the substance was dissolved in 45.0 g if chloroform CHCl3 to give 9.78x10^-2m solution. How many grams of caffeine were in the sample

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Caffeine C8H10N4O2 is stimulant found in tea and coffee. A sample of the substance was dissolved in 45.0 g if chloroform CHCl3 to give 9.78x10^-2m solution. How many grams of caffeine were in the sample 

Expert Solution
Step 1

The molecular formula of Caffeine is = C8H10N4O2

The mass of solvent is = 45.0 g

The molality of the solution is = 9.78x10^-2m

Mass of caffeine in the sample is =?

We know that the molar mass of caffeine is = 194.19 g/mol

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