The formula of gypsum and that of plaster of parls are CaSO4.xH2O and CaSO4.yH2O respectively.

Chemistry

1 answer:

barxatty [35]2 years ago

3 0

Answer:

$\frac{3}{2}$

Explanation:

Given formula of Gypsum:

CaSO₄. xH₂O,

True formula:

CaSO₄. 2H₂O, x = 2

Formula of plaster of paris = CaSO₄. $\frac{1}{2}$ H₂O,

y = $\frac{1}{2}$

The difference between x and y; x - y:

x - y = 2 - $\frac{1}{2}$ = $\frac{3}{2}$

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