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The pH of a salt used to make tasty and ...

The pH of a salt used to make tasty and cripsy pakoras is 14. Identify the salt and write a chemical equation for its formation. List it's two uses.

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The substance which is used for making different shapes is Plaster of Paris. Its chemical name is calcium sulphate hemihydrate `(CaSO_(4). ½H_(2)O)`. The two formula unit of `CaSO_(4)` share one molecule of water. As a result, it is soft. When it is left open for some time, it absorbs moisture from the atmospere and forms gypsum, which is a hard solid mass..
`underset("(Sulphate salt)")underset("(Soft)")underset("Plaster of Paris")(CaSO_(4). ½H_(2)O + 1½ H_(2)O) rarrunderset("(Hard mass)")underset("Gypsum")(CaSO_(4).2H_(2)O)`
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