Question

Why is standardization of NaOH necessary?

A) It reacts with acids readily.
B) To ensure that the mass added is consistent with the standard kilogram.
C) To ensure that hydrolysis did not occur prematurely.
D) NaOH is hygroscopic and is hard to weigh accurately.

Answer 1

NaOH standardization is necessary due to its reactivity with acids, hygroscopic nature, and to ensure consistent mass with the standard kilogram.

Step-by-step explanation:

The standardization of NaOH is necessary for several reasons. One reason is that NaOH reacts readily with acids, making it important to determine its exact concentration for accurate reactions. Another reason is that NaOH is hygroscopic, meaning it absorbs moisture from the air, making it difficult to weigh accurately. Standardization ensures that the mass of NaOH added is consistent with the standard kilogram.