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Acids, bases and salt
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08/09/2021 11:46 am
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(a) What will happen if heating is not controlled while preparing plaster of Paris?
(b) Write an equation to show the reaction between plaster of Paris and water.
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08/09/2021 11:49 am
(a) If heating is not controlled while preparing POP, then all the water of crystallisation of gypsum is eliminated and it turns into a dead burnt plaster.
(b) CaSO4.\(\frac{1}{2}\)H2O +1\(\frac{1}{2}\)H2O → CaSO4.2H2O