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Zinc sulphate contains 22.65% of zinc an...

Zinc sulphate contains 22.65% of zinc and 43.9% of water of crystallization. If the law of constant proportions is true, then the weight of zinc required to produce 20 gof the zinc sulphate crystals will be

A

`45.3 g`

B

`4.53 g`

C

`0.453 g`

D

`453 g`

Text Solution

Verified by Experts

The correct Answer is:
B
100 g of `Zn SO _(4)` crystals are obtained from `= 22. 65 g Zn`
1 g of `Zn SO _(4)` crystal will be obtained from `= ( 22. 65)/(100) g Zn `
20 g of `Zn SO _(4)` crystals obtained from `= ( 22. 65)/(100) xx 20 = 4. 53 g`
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