**Preparing solution of specific concentration using simple dilution**

If you have a concentrated stock solution of known concentration, you can prepare working solution of specific concentration and volume by diluting stock solution.

Use following formula to calculate the volume of stock solution required to prepare diluted solution

C_{f} x V_{f} = C_{S} x V_{S}

Cf: Concentration of final solution

Vf: Volume of the final solution

CS: Conc. of stock solution

VS: Volume of stock solution