To calculate the molarity of a solution it is necessary to know

To calculate the molarity of a solution it is necessary to know

- Moles of solute, or mass

- Volume of solution

Explanation:

Molarity means moles of solute, in 1L of solution.

If you firstly know the mass of solute, you can turn into moles like this:

Mass of solute / Molar mass of solute = Moles

Also, you should know the volume.

If those moles are in a certain volume, in 1L (or 1000 mL), how many moles, do you have. You should make a rule of three.

Molarity = moles / L

mmoles / mL