Chemlab

Pre Lab- 3.Yes. It would be achievable to use a non-hydrated compound. It would be come-at-able because the water in the mixture evaporates eachway. So really, at that lay wasnt much(prenominal) need for it. Procedure Summary- Obtain 12 g of copper(II) sulfate pentahydrate and record the combined quid. Add water to the copper(II) pentahydrate. Heat the mixture, unparalleled do non let it boil. Add 2 g of atomic number 26 fillings into the mixture while stirring the solution. Let it radix for quintuple minutes. After five minutes, decant the water into a contrasting 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 lot (g) come on 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- in that respect 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 electrocution smell. Calculations- 3.) 84.75 g-82.5g=2.25g Copper 4.)2.25gCu/1x1 groynee/12.0107gCu=0.187 gram breakwatereculeeCu 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 degree centigrade=99.1 % reward last(a) Results and Conclusions- We did this science labor atory exactly as it should have been done. W! e didnt answer any mistakes. Possible errors we could have made throughout the lab would be: non letting the water justy evaporate, not tot up 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 way out 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 full-of-the-moon essay, order it on our website: OrderEssay.net

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