Barium Chloride VS

Barium Chloride VS BaCl₂,2H₂O = 244.3

For a 0.1m solution Dissolve 24.4 g of barium chloride in sufficient water to produce 1000 mL.

Ascertain its exact concentration in the following manner. To 10 mL of the solution add 60 mL of water, 3 mL of 13.5m ammonia and 0.5 to 1 mg of phthalein purple as indicator and titrate with 0.1m disodium edetate VS. As the solution begins to decolorise, add 50 mL of ethanol (96%) and titrate until the bluish violet colour is discharged. Each mL of 0.1m disodium edetate VS is equivalent to 24.43 mg of BaCl₂,2H₂O.