1. Percent Yield
You prepared cookie dough to make 5 dozen cookies. The phone rings while a sheet of 12 cookies is baking. You talk too long and the cookies burn. You throw them out (or give them to your dog.) The rest of the cookies are okay.
How many cookies could you have made (theoretical yield)?
How many cookies did you actually make to eat? (Actual yield) 28

2. Vocabulary
Actual yield is the amount of product actually recovered from an experiment
Theoretical (possible) yield is the maximum of product that could be produced from the reactant.
Percent Yield is the actual yield compared to the maximum (theoretical yield) possible. 29

3. Percent Yield Calculation
What is the percent yield of cookies?
Actual Yield (g) recovered
Possible Yield (g)
Percent Yield =
X 100
48 cookies
60 cookies
% cookie yield = =
x 100
80% yield 30

4. Example. Determine the percent yield for the reaction between 2
Example Determine the percent yield for the reaction between 2.80 g Al(NO3)3 and excess NaOH if g Al(OH)3 is recovered

5. A piece of copper (II) with a mass of 5
A piece of copper (II) with a mass of 5.00 g is placed in a solution containing g silver (I) nitrate. The actual silver metal produced has a mass of 5.2 g.
Write and Balance Chemical Equation:
limiting reactant._____________
excess reactant: _____________
How much excess is remaining
What is the percent yield for this reaction.