Zinc sulphate contains 22.65% Zn and 43.9% H2O. If the law of constant proportions is true, then what will the mass of zinc required to give 40g crystal be?
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Answer:
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. A) 45.3 g.
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Answer:
9.06g
Explanation:
ZnSO
4
−22.65%Zn 43.9%H
2
O
100g crystal has 22.65 Zn
40g crystal has x Zn
x=
100
40×22.65
=
100
906
=9.06g
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