Question

why's plaster of paris stored in an airtight container?

Answer 1

The white powder of Plaster of Paris on mixing it with water changes to gypsum and sets in as a hard solid mass. Due to this reason Plaster of Paris should be stored in air tight container because air contains moisture this moisture can cause the setting of plaster of Paris into hard mass gypsum.

Answer 2

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☺ Hello mate__ ❤

◾◾here is your answer...

➽Plaster of Paris (POP) should be stored in a moisture-proof container because Plaster of Paris, a powdery mass, absorbs water (moisture) to form a hard solid known as gypsum.

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Reaction :--

CaSO4.1/2 H2O + 3/2 H2O ----> CaSO4.2H2O

Here

1) CaSO4.1/2 H2O --POP

2) CaSO4.2H2O -- gypsum

I hope, this will help you

Thank you______❤

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