Answer :
Final answer:
The mass ratio of Zn to ZnS is 65.38:97.47. In 354 kg of ZnS, there are approximately 237 kg of Zn.
Explanation:
This is a question about stoichiometry, specifically dealing with the conversion of mass to kilograms and the proportion of elements in a compound. Zinc sulfide (ZnS) has a molar mass of 97.47 g/mol, with zinc contributing 65.38 g to it. Therefore, the mass ratio of Zn to ZnS is 65.38 g Zn : 97.47 g ZnS. To convert grams to kilograms, remember that 1 kg = 1000 g. Therefore, the number of kilograms of Zn in 354 kg of ZnS can be calculated by (65.38/97.47) x 354 = approximately 237 kg of Zn in 354 kg of ZnS.
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