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Hard Lab Report Results

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In the Lab my partners and I appeared to have done a good job. Together we worked very well and persevered through a couple of tricky situations as I will later address. We were only missing .08g of the iron, .04 of the sand, and none of the Salt. This resulted in us having approximately 107% recovery of salt, a 96% recovery of sand, and a 100% recovery of salt. Thus I would say that our results were good. Also for the Styrofoam although we cannot be certain because the mass was negligible it appeared as if we got 100% recovery on that also because none of the little white styrofoam spheres were left in the mixture after we got them out with the forceps. In this lab we successfully applied the methods that were discussed in the textbooks such …show more content…
All of thee observations helped us to separate the mixture. When separating the styrofoam we observed that the iron began to stick to the forceps which may have resulted in some of the iron getting out as it was put into the designated styrofoam cup. When getting the iron out with the magnet we observed that some of the sand was mixed in with the iron as it was separated from the rest of the mixture. This may have resulted in a increase of the mass of the iron and a decrease in the mass of the sand as our results above show was the case. Then when we filtered the dissolved salt, sand, and water mixture we noticed that the sand for the most part stuck on top of the filter where as the salt that was dissolved in the water was sucked down. However when we lifted up our filter paper to recover the sand stuck on top noticed that there was sand stuck on the sides of the funnel. After seeing this we then simply washed the filter out and put that sand and water mixture through the filter again and it seemed to work but it was a lot of extra work. Finally we observed that when we evaporated the water it began to steam and bubble as the water vaporized. Then at the end when all the water was vaporized there was a sizzling and the chalky salt

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