Chemical Equilibrium Focusing on Acid-Base Systems

Dynamic equilibrium, Le Chatelier's principle, and applying equilibrium to acids and bases.

9 questions, free, marked as you go with a worked explanation on every one.

What this covers

• le chatelier and kc

The questions

1. What is true of a system at dynamic equilibrium?
2. For A + B ⇌ 2C at equilibrium, [A] = 0.20, [B] = 0.40 and [C] = 0.60 mol/L. What is Kc?
3. A reaction at equilibrium is compressed into a smaller volume. According to Le Chatelier's principle, the system will shift towards which side?
4. What does a very large value of Kc tell you about a reaction?
5. According to Brønsted-Lowry theory, what is an acid?
6. What is the conjugate base of the ammonium ion, NH₄⁺?
7. Which changes would shift an exothermic equilibrium towards the products? Select all that apply.
8. Why does a buffer solution resist changes in pH?
9. Use the table. Raising the temperature shifted the equilibrium toward the products. Is the forward reaction endothermic or exothermic?

Answer these free