How can titration be used to determine concentration?
You will use the volume and known concentration of the titrant to calculate the number of moles needed to titrate a sample of unknown concentration.
This sample video shows how to complete a calculation for titrating 10.0mL of HCl (unknown concentration) with 32.05mL of 0.100M NaOH. The solution will be 0.320M HCl.
Video from: Noel Pauller
Hope this helps!