Chemlab

Pre Lab- 3.Yes. It would be achievable to use a non-hydrated compound. It would be contingent because the water in the mixture evaporates eachway. So really, at that blank space wasnt much(prenominal) need for it. Procedure Summary- Obtain 12 g of papal bull(II) sulfate pentahydrate and record the combined chew. Add water to the copper(II) pentahydrate. Heat the mixture, strange do non let it boil. Add 2 g of straighten out fillings into the mixture while stirring the solution. Let it radix for louvre minutes. After five minutes, decant the water into a different beaker. Do this three times. Dry the copper in the beaker, on a low setting, on the hot plate. card the mass of the beaker and the copper combined. Data Tables, Charts, and Graphs- Reaction Observations Substance pack (g) gulp out beaker 82.5 g Empty beaker and CuSO4 · 5H2O 94.6 Mass CuSO4· 5H2O 12.10 g Mass Iron filings 2.0 g Mass beaker and dry out Cu 84.75 g Mass dry Cu 2 .25 g Observations- on that point were bubbles, the iron sit down on top, eventually the copper settled to the bottom, the metal changed colors, there was smoke, and there was a burning at the stake smell. Calculations- 3.) 84.75 g-82.5g=2.25g Copper 4.)2.25gCu/1x1 groynee/12.0107gCu=0.187 gram moleculeeCu 5.) 2.0gFe/1x1mol/55.645gFe=0.036molFe 6.)2.0x4=8:2.25x4=p 8:9 8.)2 g Fe/1 x 1 mol Fe/55.

84 g Fe x1 mol CuSO4 /1 mol Fe x 159.6086 g CuSO4/1 mol CuSO4=5.7 g CuSO4 2 g Fe/1 x 1 mol/55.846 g Fe x 1 mol Cu/1 mol Fe x 63.409 g Cu/1=2.27 g Cu 2.25/2.27 x cytosine=99.1 % reward last(a) Results and Conclusions- We did this lab exactly as it should h ave been done. We didnt posit any mistakes.! Possible errors we could have made throughout the lab would be: non letting the water justy evaporate, not add properly, burning the mixture, or even being careless and not doing things in order and as it was said. Discussion of Sources of Error- Our percent take number was 99.1%. As I had said, we did everything pretty accurately with no major mistakes. It is possible that when we...If you want to get a adept essay, order it on our website: OrderEssay.net

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