Why does a solution of NaOH have to be standardized against a primary standard as supposed to just using the mass and volume to

Question

3 years ago

7

calculate the concentration

1 answer:

Rudik [331] · Answer 1 · 2022-08-03T06:11:16+03:00

NaOH is hygroscopic

Explanation:

A standard solution is a solution of known molarity or concentration.
Standard solutions are used in determining the stoichiometric amount of desired species in an experiment.
A solution of NaOH is not a standard solution because NaOH is hygroscopic in nature.
By this, NaOH absorbs moisture from the atmosphere in considerable amount.
This implies that one must find an air free environment to store and use the compound and accurately quantify it.
This is why a solution of NaOH is standardize with a primary standard.

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