Saturday, November 1, 2014

Zinc and Iodine lab

This lab consisted of looking at our measurements and observing/characterizing the reaction. We will use a certain amount of Zinc and Iodine(2g) to count the number of atoms used during the reaction(& vice versa).
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Looking back at the observations and the after effects of the Zinc and Iodine lab, I concluded that the Zinc and Iodine had a ratio of 2 and one- 2 Iodine/ 1 Zinc. The ratio  in the Magnesium and Oxide lab itself  justifies our reasoning behind this ratio. When  we apply the tests we did with the Magnesium and oxide lab regarding the calculations, we found out that there was indeed a 2 and 1 ratio-as well. In addition, looking back at the Magnesium and Oxygen lab, the chemical equation are very similar in terms of structure.
First, the ratios are very similar in the amount of bonds each element. For instance, in the magnesium and oxygen lab, oxygen, is a diatomic element- it can not be by itself (would always have a subscript of 2). This relates to the Zinc and Iodine lab because Iodine is also a diatomic metal- giving it  [nearly]the same purposes as oxygen. Zinc and Magnesium are both metals, showing their relevance with both experiments.The process we took to find the ratio between Magnesium and Oxygen was finding the amount of moles for each,  in order to find the ratio of atoms. The stoichiometry process we did in the Magnesium and Oxygen lab lead to us using the same strategy with the Zinc and Iodine lab. Applying the same process, which was getting the mass of Zinc Iodine equal to 1 mole over the molar mass of zinc, and using it for he rest of the experiment, helped me calculate the ratio for Zinc and iodine during the lab.
Furthermore, both chemical equations consisted with the same structure before and after. For example, the chemical equation for the magnesium and oxide lab is 2Mg+O2 → 2MgO. This is very similar to the Zinc and Iodine lab in terms of the form. The zinc and iodine lab equation is I2+2Zn → 2ZnI. Both oxygen and Iodine are Diatomic elements, so they are both present in the equation. Magnesium and zinc are both metals, and are both as well, present in the chemical equations. This demonstrates that the different aspects of the Zinc and Iodine lab, are clearly shown in the magnesium lab and overall relate to the pipe corrosion in San Francisco (Original copper pipe lab).
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Overall, these two labs are relevant to the original copper wire lab because it shows us that if we were given the right mass of the silver nitrate, we would be able to figure out the ratio between silver nitrate before and copper nitrate after.

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