MEDIUM
AS and A Level
IMPORTANT
Earn 100

Calcium sulfate is a sparingly soluble salt that can be made by mixing solutions containing calcium and sulfate ions. A 0.00100 mol dm-3 solution of aqueous calcium chloride, CaCl2 is mixed with an equal volume of 0.00100 mol dm-3 solution of aqueous sodium sulfate, Na2SO4.

Calculate the concentration of calcium and sulfate ions when equal volumes of these solutions of calcium chloride and sodium sulfate are mixed.

(Kspof calcium sulfate = 2.0 x 10-5 mol2 dm-3)

 

Important Questions on Further Aspects of Equilibria

MEDIUM
AS and A Level
IMPORTANT

Calcium sulfate is a sparingly soluble salt that can be made by mixing solutions containing calcium and sulfate ions. A 0.00100 mol dm-3 solution of aqueous calcium chloride, CaCl2 is mixed with an equal volume of 0.00100 mol dm-3 solution of aqueous sodium sulfate, Na2SO4.

Will a precipitate of calcium sulfate form? (Ksp of calcium sulfate = 2.0 x 10-5 mol2 dm-3)

MEDIUM
AS and A Level
IMPORTANT
Which one of these is the correct numerical value for the solubility product for bismuth sulfide Bi2S3? Solubility of Bi2S3 = 3.6 x 10-8 mol dm-3.
MEDIUM
AS and A Level
IMPORTANT
Calculate the pH of 0.004 00 mol dm-3 butanoic acid(aq). Ka = 1.51 x 10-5 mol dm-3
EASY
AS and A Level
IMPORTANT
0.25 mol of sodium hydroxide is dissolved in 2.00 dm3 of water. Calculate the concentration and pH of the sodium hydroxide solution.Kw = 1.00 x 10-14 mol dm-3