Grand Central Essay

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Lab Report- Grand Central Equation Introduction In this experiment, we created Zinc Iodide yet again. However, this time we did it through different means which caused a different kind of reaction. Better said, in this lab we learned that reactions can take multiple steps to go into completion. We also analyzed which was the more efficient way to generate Zinc Iodide. Focus Question Should chemists prepare Zinc Iodide, from its elements or from a Double Replacement Reaction between Barium Iodide and Zinc Sulfate? -To put things into perspective in terms of cost efficiency, zinc granules cost about $62.50 per kilogram or $.0625 per gram. Also, Iodine chips cost about $.1498, Barium Iodide Dihydrate costs about $.886 per gram, and Zinc Sulfate Heptahydrate costs about $.0405 per gram. According the chemical reaction listed below, the double replacement reaction creates a solid Barium Sulfate precipitate This means that the ZnI2 is less pure than it would be from just the Zinc and the Iodine. With the elemental reaction you get ZnI2 as your only product thus indicated that it is “pure” Zinc Iodide. In terms of ease, it would be easier to do the double replacement reaction simply for the fact that we wouldn’t have to swirl for at least 8 minutes to get ready to get results. With the double replacement reaction the swirling process becomes eliminated, and centrifuging takes less time. In terms of cost, it would be cheaper to do the elemental reaction if we’re thinking in terms of the 1:1 reaction. Theoretically speaking, if we use one granule of zinc and one granule of iodine opposed to one granule of Barium Iodide and one granule of Zinc Sulfate, the cost would be $.2123 in total for the elemental reaction and $.9265 for the double replacement reaction. In terms of safety, it is safe to say that the safer thing would be centrifuging since we are

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