Question

How would you make 1L of 0.1N NaOH solution from an 18N stock solution?

Answer 1

We have relation , N _stock x V _stock = N _dilute x V _dilute

Where N is a Normality and V is a volume of a solution.

Therefore, V _stock = N _dilute x V _dilute / N _stock

= 0.1 N x 1000 ml / 18 N

= 5.6 ml

Take 5.6 ml of 18 N NaOH in beaker , add little distilled water to it. Carefully transfer this solution into 1 L volumetric flask and dilute up to the mark by using distilled water, resulting solution will be 0.1 N NaOH solution.