Extraction of caffeine from tea
Not what you're looking for?
At 25 degrees C, 1.0 gram of caffeine will dissolve in 47 ml of water, in 8.1 ml's of chloroform, in 86 ml of benzene, or in 370 of diethyl ether. Calculate the partition coefficient of caffeine between water and each of the other three solvents. Which of these three organic solvents would be the best choice for extracting caffeine from an aqueous solution?
Thank you for your time.
Purchase this Solution
Solution Summary
A well explained solution with all steps. The expert examines how to extract caffeine from tea.
Solution Preview
How caffeine distributes between the solvents is based on the solubility of caffeine in each of the three solvents: more of it will be found in the solvent in which it is more soluble. The ratio of the concentrations of caffenie in each of the immiscible solvents is called the distribution coefficient or the partition ...
Purchase this Solution
Free BrainMass Quizzes
Functional groups in Organic Chemistry
You will be tested on the names of functional groups in Organic Chemistry. It is very important to know the functional groups to understand Organic reactions.
Thermochemistry
The quiz helps in revising basic concepts about thermochemistry.
Match Elements with their Symbols
Elements are provided: choose the matching one- or two-letter symbol for each element.
General Chemistry - Classification of Matter
This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.