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Lab 7A – The Common-Ion Effect and Precipitation
1) What is it called when an ion-product is added and solubility of the solid is decreased? (1 pt)
2) If 0.1 M hydrochloric acid is added to a solution containing silver chloride (AgCl), how much Chloride anion can be expected to be the initial concentration in the solubility equilibrium of AgCl? (1 pt)
3) In the solubility equilibrium of AgCl, if the concentration of silver ion changes from 0.01 M to 0.001 M, does that mean that AgCl is more or less soluble? (1 pt)
4) At what concentration will an aqueous solution containing anions and cations come together to form a precipitate? (1 pt)
5) If the Qsp of a silver chloride (AgCl) solution is greater than the Ksp of AgCl, can we expect the equilibrium to shift left and form precipitate, or shift right and form more ions by increasing the solubility of AgCl? (1 pt)
Lab 7A – The Common-Ion Effect and Precipitation Answer
- Common ion effect
- 0.1 M
- AgCl will be more soluble.