ICE Table Practice Problems: Solving for Equilibrium Constant K

📚 Topic Summary

An ICE table (Initial, Change, Equilibrium) is a tool used to calculate the concentrations of reactants and products at equilibrium. It's especially helpful when solving for the equilibrium constant, $K$. The table helps organize the information given in a problem and allows you to easily determine the equilibrium concentrations by setting up an algebraic expression involving $K$. Remember, solids and liquids are excluded from the $K$ expression!

🧪 Part A: Vocabulary

Match the term with its definition:

1. Term: Equilibrium Constant ($K$)
2. Term: Initial Concentration
3. Term: Change
4. Term: Equilibrium Concentration
5. Term: Reaction Quotient ($Q$)

1. Definition: The concentration of reactants and products at equilibrium.
2. Definition: The value that describes the ratio of products to reactants at equilibrium.
3. Definition: The concentration of reactants and products before any reaction occurs.
4. Definition: The change in concentration needed to reach equilibrium.
5. Definition: A measure of the relative amounts of products and reactants present in a reaction at any given time.

📝 Part B: Fill in the Blanks

The ICE table helps organize the __________ concentrations, the __________ in concentrations, and the __________ concentrations. When setting up an ICE table, remember to use the __________ coefficients from the balanced chemical equation to determine the change in concentration for each reactant and product. If $Q$ is __________ than $K$, the reaction will shift to the __________ to reach equilibrium.

🤔 Part C: Critical Thinking

Explain in your own words why solids and liquids are excluded from the equilibrium constant expression ($K$).