Title: Percent Yield and Limiting Reactants in a Chemical Reaction
Text:
Percent yield
nut 91.4%
96.1%
Average percent yield of Trial-1: 96.17%
Average percent yield of Trial-2: 93.8%
Post-lab Questions:
In this experiment, which is the limiting reactant? Which reactant is in excess? What evidence do you have to support your answer? The answer should contain experimental evidence and calculations from the given amount of limiting and excess reactant in the original mixture.
Based on the theoretical yield, how much excess reactant will be left over?
Based on your actual yield, how much excess reactant is left over in the filtrate?
The student completely reacted a 0.5g piece of aluminum in excess CuCl2 according to the following equation:
2Al(s) + 3CuCl(q) -> 2AlCl3(q) + 3Cu(s)
Instead of rinsing off the copper, the student weighed Al and obtained 50g of Cu. Calculate the percent yield of copper in her reaction.
Do you agree with the statement "The percent yield of a reaction could be more than 100"? Why or why not? Explain: