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Molecular Formula

One formula u...

Question

One formula unit of hydrated calcium sulphate always contains two molecules of water of crystallisation.

A

True

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B

False

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Solution

The correct option is B False

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Similar questions

Q. Hydrated copper sulphate contains how many molecules of water of crystallisation?

Q. Hydrated sulphate of a divalent metal of atomic weight 65.4 loses 43.85% of its weight on dehydration. Find the number of molecules of water of crystallisation in the formula of hydrated salt.

Q. Write the name and formula of one salt each which contains:
(a) two molecules of water of crystallisation
(b) five molecules of water of crystallisation
(c) ten molecules of water of crystallisation

C a S O_{4} (M W = 136 g / m o l)

is formed when 4.30 g of hydrated calcium sulphate heated to a constant mass. How many moles of water of crystallisation are combined with each mole of calcium sulphate?

Q. Plaster of Paris is known as calcium sulphate hemihydrate because two formula units of

C a S O_{4}

share one molecule of

H_{2} O

.

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