Non Hydrated Compound

508 Words3 Pages
Pre Lab- 3.Yes. It would be possible to use a non-hydrated compound. It would be possible because the water in the mixture evaporates anyway. So really, there wasn't much need for it. Procedure Summary- Obtain 12 g of copper(II) sulfate pentahydrate and record the combined mass. Add water to the copper(II) pentahydrate. Heat the mixture, but do not let it boil. Add 2 g of iron fillings into the mixture while stirring the solution. Let it stand for five 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. Measure the mass of the beaker and the copper combined. Data Tables, Charts, and Graphs- Reaction Observations Substance Mass (g) Empty…show more content…
We didn't make any mistakes. Possible errors we could have made throughout the lab would be: not letting the water fully evaporate, not measuring 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 yield number was 99.1%. As I had said, we did everything pretty accurately with no major mistakes. It is possible that when we weighed the copper, it could have not been fully dry. Doing so would have affected the mass and thrown our numbers off. We could have weighed our substance before we had fully evaporated all the water. We also could have burned our mixture. Analyze and Conclude- 1.)Bubbles, smoke, and smell 2.)Fe+CuSO4 --> FeSO4 + Cu 3.)2.25g Cu (see Calculations) 4.)0.187 molCu (see Calculations) 5.)0.036 molFe (see Calculations) 6.)8:9 (calculations) 7.) 1 mol Fe: 1 mol

More about Non Hydrated Compound

Open Document