|Volume % =||volume of substance
volume of total solution
For example, to prepare 100 mL of 5% (v/v) solution of ethanol, pipette 5 mL of ethanol into the bottom of a 100 mL flask and dilute to the mark with water.
Careful, though. The denominator specifically says volume of total solution and NOT volume of solvent. This makes a difference, because volumes are not additive. 5 mL ethanol plus 95 mL of water does NOT equal 100 mL of solution!
Author: Fred Senese email@example.com
Copyright © 1997-2010 by Fred Senese
Comments & questions to firstname.lastname@example.org
Last Revised 08/17/15.URL: http://antoine.frostburg.edu/chem/senese/101/solutions/faq/print-percentage-by-volume.shtml