Question

State five condition for a substance to be primary standard

Answer 1

Answer:

*be available with extremely high purity.

* be stable under the conditions it will be stored and used in.

* have no water of hydration and have no tendency to become hydrated .

* if it did, its weight could change with humidity changes.

*be of high molecular weight this helps minimize the effect of small weighing errors.

Explanation:

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