Equilibrium Constants and ICE Tables

This video tutorial introduces the ICE table as a tool for solving equilibrium problems. It explains how to set up an equilibrium problem, determine initial conditions, and fill out the ICE table. The tutorial covers the change line and stoichiometry, and demonstrates how to calculate equilibrium concentrations and the equilibrium constant KQ using the ICE table.

What is the primary purpose of an ICE table in equilibrium problems?

• To organize information and solve equilibrium problems

• To determine the color of the reactants

• To measure the pressure in the container

• To calculate the temperature of the reaction

Why is it important to calculate initial concentrations accurately?

• Because it determines the color of the solution

• Because it affects the temperature of the reaction

• Because it changes the volume of the container

• Because incorrect initial concentrations can lead to wrong equilibrium calculations

In the ICE table, what does the 'C' in ICE stand for?

• Concentration

• Container

• Change

• Constant

How does stoichiometry affect the change line in an ICE table?

• It dictates the ratio of change in concentrations

• It changes the volume of the container

• It affects the temperature of the reaction

• It determines the color of the reactants

What should you do if the initial concentration of a reactant is zero in an ICE table?

• Assume it will remain zero

• Double the concentration of other reactants

• Use a variable to represent its change

• Ignore it completely

What is the equilibrium concentration of bromine if X is 0.5 moles per liter?

• 0.25 moles per liter

• 0.5 moles per liter

• 1.0 moles per liter

• 2.0 moles per liter

What is the equilibrium concentration of iodine if X is 0.5 moles per liter?

• 0.25 moles per liter

• 0.5 moles per liter

• 2.0 moles per liter

• 1.0 moles per liter

How do you calculate the equilibrium constant (KQ) for a reaction?

• By subtracting the concentrations of reactants from products

• By adding the concentrations of reactants and products

• By multiplying the concentrations of products and dividing by reactants

• By dividing the initial concentrations of reactants

What is the value of KQ if the concentrations of Br2 and I2 are both 0.5 moles per liter and IBr is 5.5 moles per liter?

• 83

• 0.045

• 0.083

• 8.3

Why are there no units for the equilibrium constant (KQ)?

• Because it is a measure of volume

• Because it is a measure of pressure

• Because it is a measure of temperature

• Because it is a ratio of concentrations