Remember the Lab we did way back when?
I'll just give a quick review of it.
Our object was to observe the reactions and determine the limiting and the excess reactants. Then find out the percent yield by comparing the actual mass with theoretical mass.
This lab took us two classes because we had to create precipitate solution and then filter the precipitate separate from the solution.
We had to calculate the masses of filter paper, dried filter paper with the precipitate and the dried precipitate.
There were few sources of error: Not having the exact required amounts of solution and the uncertainty of the centigram which we used to calculate the masses.
In conclusion, we proved that percent yield is true and that it wasn't 100% because not all reactants react completely because of the wrong conditions.
No comments:
Post a Comment