Question

When will you almost certainly need to use an ICE table?

Answer 1

An ICE table is essential for determining the equilibrium concentrations in reversible chemical reactions, especially when dynamic equilibrium is involved. It helps by outlining initial conditions, change, and equilibrium states in a structured manner, enabling accurate computation of concentrations.

Step-by-step explanation:

When you need to find the equilibrium concentrations of reactants and products in a chemical reaction, using an ICE table is almost certainly necessary. The ICE table allows you to systematically calculate changes in concentrations or partial pressures from the initial (I) state, through the change (C), to the equilibrium (E) state, particularly useful for reversible reactions that achieve dynamic equilibrium.

Procedure to Use an ICE Table

1. Identify the direction in which the reaction will proceed to reach equilibrium.
2. Develop an ICE table with columns for Initial concentrations, Change in concentrations, and Equilibrium concentrations.
3. Calculate the concentration changes and subsequently the equilibrium concentrations.
4. Confirm the calculated equilibrium concentrations to ensure they are correct.

The use of an ICE table is crucial in scenarios where the reaction involves dynamic equilibrium and the concentration of each species at equilibrium must be determined. For instance, the reaction CO (g) + Cl2 (g) → COCl2 (g) is a typical situation where an ICE table would be employed.