AP Chemistry Unit 7 - Equilibrium

Front

What is a conjugate acid/base pair?

Back

A conjugate acid/base pair consists of two species that differ by the presence or absence of a proton (H+). For example, NH4+ (conjugate acid) and NH3 (conjugate base) are a conjugate pair.

Front

What happens to the pH of a solution when a weak acid is mixed with its conjugate base?

Back

The pH of the solution remains relatively stable due to the buffer action of the weak acid and its conjugate base.

Front

What does K_eq > 1 indicate about a chemical reaction at equilibrium?

Back

It indicates that there are more products than reactants at equilibrium.

Front

How does adding heat to an endothermic reaction affect the equilibrium position?

Back

Adding heat shifts the equilibrium position to the right, favoring the formation of products.

Front

What is the dissolution reaction for BaCl2?

Back

BaCl2(s) → Ba2+(aq) + 2Cl-(aq)