AP Chemistry: Class 18

Period E – Tuesday, October 1st

Questions before quiz?

• titration
• gravimetric analysis
• oxidation numbers
• naming / formulas

Quiz

• three questions
• short answer
• naming & formulas included
• one “work-em-out” question (numbers! calculations! thinking!)

Homework

• Finish Lab Report
• come by during office hours for lab report assistance

LAB ANSWER

You cannot determine the identity of the carbonate because the calcium chloride is the limiting reactant in the reaction. Gravimetric analysis only works when the precipitate is tied to the desired limiting reactant.