Question

What must you do to make a 10 mM solution of NaOH when you are given a stock of NaOH that is 1 mM?

Answer 1

In order to obtain 10 mM solution of NaOH from a stock of NaOH that is 1 mM we must increase the concentration of NaOH in the solution.

This can be done through adding some more solid NaOH to the 1 mM solution.

Alternatively it is also possible to heat and evaporate water from 1 mM solution.