Equilibrium Concentrations and ICE Tables

The video tutorial explains how to calculate equilibrium concentrations starting from non-equilibrium initial conditions. It introduces the concept of an ICE table to organize initial conditions, changes, and equilibrium states. The tutorial walks through setting up the equilibrium expression and solving it using algebraic methods, including taking advantage of perfect squares. Finally, it verifies the solution by plugging the equilibrium concentrations back into the expression to ensure accuracy.

What is the initial condition for calculating equilibrium concentrations in this tutorial?

• The system has no reactants.

• The system has no products.

• The system is not at equilibrium.

• The system is at equilibrium.

In an equilibrium expression, how are the coefficients of reactants and products used?

• As exponents in the expression.

• As multipliers of concentrations.

• As constants in the equation.

• As denominators in the fraction.

What does the 'I' in ICE table stand for?

• Isolated

• Initial

• Intermediate

• Increment

Why does the reaction initially proceed in the forward direction?

• Because the products are in excess.

• Because the system is at equilibrium.

• Because there are no products initially.

• Because the reactants are in excess.

What is the change in concentration for the reactants in a 1:1 ratio reaction?

• The change is double for one reactant.

• The change is half for one reactant.

• The change is zero.

• The change is equal for both reactants.

How is the equilibrium concentration of the product calculated in this tutorial?

• By subtracting the change from the initial concentration.

• By dividing the change by two.

• By adding twice the change to the initial concentration.

• By multiplying the change by two.

What mathematical property simplifies solving the equilibrium expression in this tutorial?

• Quadratic formula

• Perfect square

• Exponential growth

• Logarithmic identity

What is the equilibrium concentration of H2 and I2 after solving the ICE table?

• 0.04 M

• 0.16 M

• 0.32 M

• 0.20 M

What is the equilibrium concentration of HI after solving the ICE table?

• 0.20 M

• 0.16 M

• 0.04 M

• 0.32 M

What should the calculated equilibrium concentrations satisfy when plugged back into the equilibrium expression?

• The value of K should be 8.

• The value of K should be 64.

• The value of K should be 32.

• The value of K should be 16.