Dilutions Made Easy--How to create solutions of any concentration whatsoever! By Dr. Shawn

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The ability to create solutions with particular concentrations is a foundational skill for the chemical and biological sciences. In this video, Dr. Shawn* shows you the practical secrets to simply and easily create chemical solutions with any concentration(s) you need. Intended for chemistry students and citizen scientists.

(OOPS: Apologies for the error at 7:33. The top box should read "39% solvent", not "31%".)

Measuring Density:

SUPPLIES USED IN THIS VIDEO:

Volumetric Flasks

Inexpensive Digital Scale

Volumetric Pipettes

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Shawn,
This brings up a question that I have had since I wrote my article on Chemical Kinetics. When you dissolve something the volume of the solution is going to be greater than the volume of the solvent you started with. So is the definition of concentration the amount of solute in the overall solution or the amount of solute in the solvent? It probably is not important for small concentrations but it could be for large concentrations or very precise work.

jmhannnon