Question

Q.2 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 g of the
crystals will be​

Answer 1

Answer:

100 g of the compound ZnSO4 xH2O contains 22.65g

So 40 g of the Compound contains

2265/100*40=9.06g

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