Determining the Limiting Reactant

1
Session 60

• Determining the Limiting Reactant

2
Atomic Accounting

• Complete 1,2,4

3
Copper Sulfate Iron Lab

• Collect Data from Determining the Percent Yield
  Lab
• Clean up materials
• Work on theoretical yield calculations
• Conclusions and analysis
• Other considerations?

4
Percent by Mass

• Did you consider the fact that CuSO4 is a
  hydrate?
• How does this alter your conclusions?
• New calculations?
• Does this change the limiting reactant?
• Alternative procedure? How could you eliminate
  this variable?

5
Limiting Reactant Calculations

• Two problems
• Convert both starting ingredients (reactants)
  into the same product.
• Identify the reactant that produces the fewest
  number of moles or grams of the product.
• This is the substance that limits the reaction
  and is thus called the limiting reactant.

6
Homework

• 11-3 Review Problems 1-6
• Due Session 61 (Thursday 02/22)
• Determining Percent Yield Lab
• Due Session 62 (Monday 02/26)
• Chap 13 Assessment
• Session 64 (Thursday 03/01)