1. Results
Data
Mass of iron nails before the reaction _________
Mass of iron nails after the reaction _________
Mass of filter paper _________
Mass of filter paper and copper _________
Processing the Data
Determine the mass of iron that reacted (lost by the nails).
Use the mass of iron that reacted to determine the theoretical yield of copper.
Determine the actual mass of copper produced.
Determine the percent yield of copper.
A. Which reactant is the limiting reagent? What evidence supports this?
B. Use calculations to determine the limiting reagent.
C. Calculate the mass of the excess reagent remaining after the reaction is over.
6. Determine the number of grams of copper (II) chloride required to react with all of the iron you put in the beaker (look at the mass of iron that you started with).

2. Lab Calculation Question
You have performed the iron and copper (II) chloride experiment again.
Fe + CuCl2 → FeCl2 + Cu
Data
Mass of iron nails before the reaction g
Mass of iron nails after the reaction g
Mass of filter paper g
Mass of filter paper and copper 5.13g
Determine the mass of iron that reacted.
Determine the theoretical yield of copper.
Determine the actual yield of copper.
Determine the percent yield of copper.
Determine the limiting reagent (show the calculation) and clearly state the limiting reagent.
Determine the mass of the excess reagent that is left over at the end of the reaction.
Determine the number of grams of copper (II) chloride required to react with all of the iron.

3. Discussion
What was the limiting reagent in this reaction? How did you know it was limiting? Was one of the reactants left over at the end of the reaction? Why would it be left over at the end of the reaction?
Was the percent yield 100%? (Reasons why % yield is not 100%?)
Yellow residue on filter paper? What is it and how does it affect your results?
Black substance on filter paper? What is it and how does it affect your results?
Other errors? What is the error and how does it affect your results?
Conclusion
Reflects back to the purpose - state the answer (s)
How could the experiment be improved if it was repeated?