MCQOPTIONS
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| 1. |
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 |
| B. | 4.53 g |
| C. | 0.453 g |
| D. | 453 g |
| Answer» C. 0.453 g | |