How to make 0.5 mol/L NaOH solution?

How to make 0.5 mol/L NaOH solution?
2024-07-11 06:37:18 You need to purchase the NaOH solution first, and add 1~2 drops glycerinum to the NaOH solution for every 100mL. Only by adding the NaOH solution into the probe can it be ready for use.
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