Question

What do you mean by the term 'concentration of a solution'? How can we express the concentration of a solution?

Answer 1

Concentration of a solution is defined as the amount of solute that is present in a given amount of solution.

Solution can be dilute if it contains less amount of solute in it. If the solution contains more amount of solute, it will be known as concentrated solution.

Concentration can be expressed in a quantitative way as well:

• Mass by mass percentage of a solution $=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 100$
• Mass by volume percentage of a solution $=\frac{\text{Mass of solute}}{\text{Volume of solution}}\times 100$
• Volume by volume percentage of a solution $=\frac{\text{Volume of solute}}{\text{Volume of solution}}\times 100$