The solvent diethyl ether can be mixed with water but only by shaking the two liquids together. After the shaking is stopped, the liquids separate into two layers, much like oil and vinegar. The free-base form of the alkaloid caffeine is readily soluble in diethyl ether but not in water. Suggest what might happen to the caffeine of a caffeinated beverage if the beverage was first made alkaline with sodium hydroxide and then shaken with some diethyl ether.
Want to see the full answer?
Check out a sample textbook solutionChapter 19 Solutions
Conceptual Physical Science Plus Mastering Physics with Pearson eText -- Access Card Package (6th Edition)
Additional Science Textbook Solutions
College Physics (10th Edition)
The Cosmic Perspective
Lecture- Tutorials for Introductory Astronomy
An Introduction to Thermal Physics
University Physics Volume 1
Tutorials in Introductory Physics
- Consider the complete combustion of octane, C8H18. What is the coefficient in front of O2 when the equation is properly balanced? (13.2) (a) 12 (b) 13 (c) 20 (d) 25arrow_forwardHow many shared pairs of electrons are in an ammonia molecule NH3? (12.5) (a) 1 (b) 2 (c) 3 (d) 4arrow_forwardWhich of the following is a correct formula for an alkyl halide? (14.4) (a) CH3Br (b) C7H16 (c) CH2NH2 (d) CH3CH2OHarrow_forward
- Calculate (to the nearest 0.1 u) the formula mass of these compounds: (a) glucose, C6H12O6 (b) sucrose, C12H22O11 (c) azithromycin, C38H72N2O12arrow_forwardWhy is it necessary to use Greek prefixes when naming compounds containing two nonmetals?arrow_forwardA compound with the general formula CnH2n is either an alkene or a(n) ___. (14.3)arrow_forward
- An Introduction to Physical SciencePhysicsISBN:9781305079137Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar TorresPublisher:Cengage Learning