Question

Identify the effect of increasing acidity on the solubility of the given compounds. Drag the appropriate items to their respective bins. View Available Hint(s) ResetHelp
Ca3(PO4)2

Ba(OH)2

MgCO3

CuS

PbBr2

CuI

Increase in solubility / No change in solubility

Answer 1

Answer:

Ca3(PO4)2- Increase in solubility

Barium hydroxide- increase in solubility

Magnesium carbonate- increase in solubility

Copper II sulphide- increase solubility

Lead II bromide- increase solubility

CuI - increase solubility

Explanation:

Calcium phosphate solubility is pH dependent. At lower pH, calcium phosphate is more soluble in water while at pH above 8.5, the solubility of calcium phosphate decreases markedly.

For Barium hydroxide and magnesium carbonate,decreasing the pH will increase the solubility of the compound.

For copper II sulphide,decreasing the pH will lead to a greater solubility. Also, lead II bromide is ordinarily insoluble in water but it's solubility increases with decreasing pH.

CuI is insoluble in water but soluble in dilute hydrochloric acid.