But in real life these kinds of description can add to
lot of confusion and thus the need for a quantitative description
of the solution There are several ways by which we can describe the concentration
of the solution quantitatively (i) Mass percentage (w/w): The mass percentage of a component of a
solution is defined as:
Mass % of a component
= 
Mass of the component in the solution 
100
Total mass of the solution
(1 1)
For example, if a solution is described by 10% glucose in water by
mass, it means that 10 g of glucose is dissolved in 90 g of water
resulting in a 100 g solution