To calculate the percentage of a specific number you first convert the percentage number to a decimal. Volume percent 3. In percent solutions the amount weight or volume of a solute is expressed as a percentage of the total solution weight or volume.
This means there is 12 ml ethanol for every 100 ml of wine.
The volume of the solute divided by the volume of solution expressed as a percent yields the percent by volume of the solution. To calculate the percentage of a specific number you first convert the percentage number to a decimal. Assume the hardsphere atomicmodel and that there is no change in atomic volume before and after the transformation. You divide your percentage by 100.