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Chemical Reactions Lab Report

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I was hired to be a new chemistry teacher at the Forest Grove High School. When I got there, there was chemicals on a shelf but some chemicals did not have labels. The important concept in this lab was to help teach you how to identify chemicals based on other chemical reactions. There were six chemicals that did not have labels so we had to make a hypothesis and then test the chemicals. After testing the chemicals we had to write down the reactions on a data table saying if they were soluble or not and what color the reaction is. Safety methods were to wear goggles and to wash your hands often. Our hypothesis was A-Hg(NO3)2, B-NH4OH,C-K2CrO4, D-AgNO3, E-FeCl3, and F-HgCl2. The chemicals that were the most soluble …show more content…

We made our predictions on which ones are which. We knew that one of the chemicals had a terrible smell that resembled that of NH4OH, so that one was easy to predict. Then we tested the chemicals to the ones on our data chart. We tested the chemical reactions that had unique colors. We tested mystery element B with potassium chromate which made a neon yellow color, and that was the same as Mercury(II) Chloride. That left us with the last possible chemical which was Hg(NO3)2 and element F. In conclusion we ended up solving the mysteries of the mystery elements. The results were that mystery element A was Ammonium Hydroxide, B was Mercury(II) Chloride, C was Potassium Chromate, D was Silver Nitrate, E was Iron (III) Chloride, and F was Mercury(II) Nitrate. Possible errors in the lab could have been chemical mixtures, data collection, cleanliness of hands and clear chart, and possible data crossing. Our hypothesis was mostly correct but some parts were incorrect. The parts of a hypothesis that were incorrect or the predictions of all the clear liquids. What I had learned from this lab is how to predict and find out what chemicals are based upon data and testing. This could be used in other parts of science because you are using your data to predict other things. I would enjoy trying this experiment again with more mystery chemicals to try and

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