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

Respuesta :

quasarJose

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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