ICE Boxes

Evaluation/Assessment: Objective: Today I will be able to: Determine the concentrations of reactants and products initially and during equilibrium for a reaction by using an ICE table Evaluation/Assessment: Informal assessment: monitoring student questions as they complete the practice problems Formal assessment: analyzing responses to the practice and exit ticket Common Core Connection Build strong content knowledge Reason abstractly and quantitatively Make sense of problems and persevere in solving them

Lesson Sequence Evaluate: Warm – Up Explain: ICE Tables Elaborate: ICE Table Practice Evaluate: Exit Ticket

Warm - Up What is the purpose of an ICE table? What does ICE stand for?

Objective Today I will be able to: Determine the concentrations of reactants and products initially and during equilibrium for a reaction by using an ICE table

Homework Finish Practice Problems from Class

Agenda Warm – Up Intro to ICE Boxes Notes Ice Box Practice Exit Ticket

Intro to ICE Boxes

Equilibrium Problems The equilibrium constant can also be used to calculate equilibrium concentrations from initial concentrations Use an ICE table! To start with, we will use a generic equation A(g) + B(g)  2 C(g) [A] = .100 M and [B] = .100 M

A(g) + B(g)  2 C(g) A B 2 C Initial .100 M Change -x +2x Equilibrium DISCLAIMER: THIS SLIDE IS JUST SHOWING YOU THE PROBLEM SET – UP NOT ENOUGH INFO TO SOLVE. SEE IN CLASS EXAMPLES. A(g) + B(g)  2 C(g) A B 2 C Initial .100 M Change -x +2x Equilibrium .100 – x 2x A and B are assigned –x values because they are being reacted, while C gets a +x because products are being formed. The 2x comes from the coefficient in front of the C

ICE Table Practice Problems We will complete in class examples and then you will try on your own!

Exit Ticket Which problems on the ICE box practice were the most challenging? One thing I am confused about is ___________________________.