What is the final volume of naoh solution prepared from 100.0 ml of 0.500 m naoh if you wanted the final concentration to be 0.150 m?

The final volume of NaOH solution is 30ml

Explanation:

We all know that

              V1S1 = V2S2

             or V1= V2S2÷S1

             or  V1= V2×S2×1/S1

             or   V1=100×0.15×1/0.50

                    V1= 30

∴30 ml NaOH solution is required to prepare 0.15 M from 100ml 0.50 M NaOH solution.

the answer is minerals.

i do not get it   at all