AP Chemistry: Class 21

Period E – Monday, October 7th

Problem Solving in Thermodynamics

• first law
• enthalpy
• calorimetry

Practice – Chapter 5

• 27, 28, 29, 36, 38, 43, 50

Homework

• Ch. 5 (finish in-class problems)

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.