Bonding in Metals and Semiconductors.docx - Brandon...

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Brandon Comiskey-Lucero Raymond Chem121L Sec 8 December 3, 2018 Bonding in Metals and Semiconductors Introduction Throughout this experiment we encountered many things. These ranged from learning about metallic bonding and insulators, semiconductors, and metals, all the way to hydrogen insertion and light emission. To do this we set up a procedure of circuits and observed resistance and voltage and how this is affected by different variables in the experiment. Experimental Data To start off our experiment, we began on the portion of Hydrogen insertion into WO3. First, we obtained our sample of WO3. Our sample was a dull green color at the start. We obtained exactly 0.5 g of WO3. Next, we took this sample and mixed it with around 50 mL of Hydrochloric Acid. This solution gained the dull green color of the original sample. Next, we inserted our sample of zinc. Our sample of Zinc was exactly 0.5459 g. We then let the reaction go on. As it went on the solution went from the dull, milky green color to a dull gray color. When the reaction finished we went
through the filtration process to be left with dull gray powder that was left over. We then used this powder and a sample of the original powder, and determined the resistance of each. To test the resistance, we placed a

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