Concentration of solutions.

https://www.youtube.com/watch?v=3G3KQIyoZDI&list=PL9IouNCPbCxUhxxFUbR4SNfwmaRB8mYX3&index=16&ab_channel=Freesciencelessons

What is concentration

Concentration tells us the mass of a solute in a given volume of solution.

A solute is a chemical that is dissolved in a solvent

In chemistry, water is often used as a solvent

One unit of concentration is g/ dm³

How do we work out concentration

Concentration (g / dm³) = mass (g) / volume (dm³)

200g of chemical is dissolved in water to a final volume of 1 dm³. Calculate the concentration of the solution

Concentration = mass / volume.

200 / 1

= 200 g / dm³

How does mass of solute and volume of solution affect concentration.

If we increase the mass of solute and keep the volume the same, then we increase the concentration.

If we increase the volume of solution and keep the mass of the solute the same, then we decrease the concentration.