Equilibrium Concentrations and Constants

Professor Adam explains how to solve ICE tables for chemical equilibria. The video covers constructing ICE tables for reactions involving SO3 and H2O, calculating the equilibrium constant (Kc) for a reaction involving NO and H2, and determining equilibrium concentrations for a reaction involving H2 and Br2. The video provides step-by-step instructions and calculations to help viewers understand the process of solving ICE tables and calculating equilibrium constants.

What is the initial concentration of H2SO4 assumed to be in the reaction involving SO3 and H2O?

• 0.5 M

• 0 M

• 2.0 M

• 1.0 M

In the reaction involving NO and H2, what is the change in concentration for NO?

• +x

• -2x

• -x

• +2x

What is the equilibrium constant expression for the reaction involving NO, H2, H2O, and N2?

• Kc = [NO][H2] / [N2][H2O]

• Kc = [NO]^2[H2]^2 / [N2][H2O]^2

• Kc = [N2][H2O]^2 / [NO]^2[H2]^2

• Kc = [N2][H2O] / [NO][H2]

What is the balanced equation for the reaction involving H2 and Br2?

• 2H2 + Br2 -> 2HBr

• H2 + 2Br2 -> 2HBr

• H2 + Br2 -> HBr

• H2 + Br2 -> 2HBr

What is the initial concentration of H2 in the reaction involving H2 and Br2?

• 0.06 M

• 0.01 M

• 0.02 M

• 0.1 M

What is the approximate value of x when solving the quadratic equation for the reaction involving H2 and Br2?

• 0.04

• 0.01

• 0.008

• 0.02

Why is the assumption that x is small compared to the initial concentration incorrect in the reaction involving H2 and Br2?

• Because x is zero

• Because x is significant

• Because x is not significant

• Because x is larger than the initial concentration

What is the equilibrium concentration of HBr in the reaction involving H2 and Br2?

• 0.008 M

• 0.02 M

• 0.016 M

• 0.01 M

What is the final equilibrium concentration of H2 in the reaction involving H2 and Br2?

• 0.004 M

• 0.008 M

• 0.01 M

• 0.002 M

What is the value of the equilibrium constant Kc for the reaction involving H2 and Br2?

• 32

• 256

• 64

• 128