Equilibrium Concentrations and Constants

The video tutorial explains how to calculate equilibrium concentrations using an ICE chart for the reaction CH4 + CCl4 -> 2 CH2 Cl2. It covers setting up initial concentrations, determining changes, and using the equilibrium constant (KC) to find the final concentrations. The tutorial demonstrates solving for X and calculating the equilibrium concentrations of all species involved.

What is the initial concentration of CH4 in the reaction setup?

• 0.200 M

• 0.250 M

• 0.300 M

• 0.285 M

During the reaction, how is the change in concentration of CH2Cl2 expressed?

• Minus X

• Plus X

• Plus 2X

• Minus 2X

What is the expression for the equilibrium constant KC for this reaction?

• Products over reactants, each raised to their coefficients

• Reactants over products, each raised to their coefficients

• Sum of products and reactants

• Difference between products and reactants

What mathematical operation is used to simplify the equation due to perfect squares?

• Square root

• Addition

• Multiplication

• Subtraction

What is the value of X after solving the equilibrium equation?

• 0.0481

• 0.0381

• 0.0281

• 0.0581

What is the equilibrium concentration of CH2Cl2?

• 0.0862 M

• 0.0762 M

• 0.0562 M

• 0.0662 M

What is the equilibrium concentration of CH4?

• 0.237 M

• 0.267 M

• 0.257 M

• 0.247 M