Answer to Question #104456 in General Chemistry for Annie

Question

Which of the above equilibria is forced to shift furthest to the left? Explain.

- Lead nitrate and Sodium chloride
- Lead chloride and Sodium chromate
-Lead chromate and Sodium sulphide

Answer 1

Lead chloride and Sodium chromate 

Changing the concentration of a chemical will shift the equilibrium to the side that would reduce that change in concentration. The chemical system will attempt to partly oppose the change affected to the original state of equilibrium.