Caffeine, #C_8H_10N_4O_2#, is a stimulant found in tea and coffee. A sample of the substance was dissolved in 45 g of chloroform, #CHCl_3#, to give a 0.0946 molar solution. How many grams of caffeine were in the sample?

1 Answer
anor277
Jan 16, 2018

Is it a #0.0946*mol*L^-1# solution....or a #0.0946*mol*kg^-1# solution....

Explanation:

#"Molarity"="Moles of solute"/"Volume of solution"#

#"Molality"="Moles of solute"/"Kilograms of solvent"#

You have not given us the volume of the solution.... I assume that it is approx. #30*mL#..(#rho_(CHCl_3)=1.489 *g*cm^-3#)...but at the moment we cannot address this question.

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