Liquid Solute and Volume Percent

Expressing concentration as a volume percent is appropriate and common when the solute is a liquid, because (unlike the volume of a solid) the volume of a liquid is easy to measure, whether it be with a graduated cylinder, pipet, or graduated container. The calculation and procedure can actually be thought of as 

Milliliters of solute = (Percent desired MOO) x Total mL desired (10.15) 

The solute is measured (or pipetted if high precision is important) into a graduated container (or a volumetric flask if high precision is important), and the solvent is added so that the total volume is the volume of solution that is desired. Notice that the identity of the solute does not enter into the calculation or process. 

75 mL of ethanol are measured Into the vessel to contain the solution. Water Is then added to the 500.0-mL level, and the solution is stirred, shaken, or swirled. 

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Liquid solute and volume percent Solid solute and weight to volume percent Solid solute and molarity... 

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