Question

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

The difference x-y equals to;

1) 1
2) 3/2
3) 5/2
4) 1/2

Help me​

Answer 1

`(3)/(2)`

Step-by-step explanation:

Given formula of Gypsum:

CaSO₄. xH₂O,

True formula:

CaSO₄. 2H₂O, x = 2

Formula of plaster of paris = CaSO₄.
`(1)/(2)` H₂O,

y =
`(1)/(2)`

The difference between x and y; x - y:

x - y = 2 -
`(1)/(2)` =
`(3)/(2)`