Question

which compound, when added to a saturated solution of agcl(s), will cause additional agcl to precipitate? select all that apply: nacl hno3 nano3 agno3

Answer 1

NaCl and AgNO3

Step-by-step explanation:

The solubility equilibrium for the dissolution of AgCl(s) is

AgCl(s) ⇌ Ag+(aq) + Cl−(aq)

According to Le Châtelier’s principle, more solid AgCl will form if a disturbance causes the equilibrium position to shift from right to left (increasing the amount of AgCl). Adding a common ion, either Ag+ from AgNO3 or Cl− from NaCl, will shift the equilibrium to the left, precipitating additional AgCl(s). Adding the strong acid HNO3 will not affect the solubility of the solid, since Cl− is a spectator ion and will not react with this acid. The addition of NaNO3 will not affect the solubility equilibrium to any appreciable extent either, since neither ion in this salt is involved in the equilibrium.