0
Acidify the given solution with a few drops of concentrated HNO3 followed by the addition of 4 mol dm-3 sulphuric acid or ammonium sulphate. A white precipitate implies that there are Barium (II) ions present in the solution.
The objective of the test give above is to recognize the Barium(II) ions as the white precipitate of barium sulphate which is not soluble in most of the solvents. Adding a sulphate solution at first might cause distractions as other cations such as strontium also make white precipitates with sulphate ions. Those other precipitates dissolve in dilute nitric acid.
What else can I help you with?
What is the test for barium ions?
The test for barium ions involves adding a solution of a sulfate compound (e.g. sodium sulfate) to a solution containing the barium ions. A white precipitate of barium sulfate forms if barium ions are present.
Is a solution of barium bromide be acidic basic or neutral?
A solution of barium bromide would be neutral since barium bromide is a salt that dissociates into barium ions and bromide ions in water. Neither of these ions will significantly affect the pH of the solution.
How would you test for potassium and sulfate ions in the alum?
To test for potassium ions, you can use a flame test by heating a sample of the alum on a looped wire in a Bunsen burner flame; potassium ions produce a lilac flame color. For sulfate ions, you can add a few drops of barium chloride solution to a solution of the alum; a white precipitate (barium sulfate) forms if sulfate ions are present.
Assume that a solution forms the product barium carbonate The product formed is?
Barium carbonate is formed when barium ions (Ba^2+) react with carbonate ions (CO3^2-) in solution. This reaction produces a white precipitate of barium carbonate, which is insoluble in water.
What ions are left in solution after reacting 250.0 ml of a 0.10M Barium Nitrate solution with 200 ml of a .10 potassium phosphate solution?
The reaction between barium nitrate (Ba(NO3)2) and potassium phosphate (K3PO4) will form barium phosphate (Ba3(PO4)2) and potassium nitrate (KNO3). The ions left in solution will be potassium (K+) and nitrate (NO3-) ions from the potassium nitrate. The barium phosphate will precipitate out of solution.
What is the test for barium ions?
The test for barium ions involves adding a solution of a sulfate compound (e.g. sodium sulfate) to a solution containing the barium ions. A white precipitate of barium sulfate forms if barium ions are present.
How do you test for barium ions in a solution?
Add a sulfate solution: BaSO4 precipitates!
Why do you add hydrochloric acid to test for sulphate?
Hydrochloric acid is added to a solution being tested for sulphate ions to precipitate the sulphate as barium sulphate. This is a confirmatory test for the presence of sulphate ions in the solution because barium sulphate is insoluble and forms a white precipitate.
Is a solution of barium bromide be acidic basic or neutral?
A solution of barium bromide would be neutral since barium bromide is a salt that dissociates into barium ions and bromide ions in water. Neither of these ions will significantly affect the pH of the solution.
How do you test for sulphate ions?
add barium chloride or barium nitrate to a solution containing sulphate ions SO4 2-. To the same solution add hydrochloric acid in excess. OBSERVATIONS, a white precipitate which is insoluble in excess acid confirms presence of SO42- IF IT DISSOLVES then it confirms SO32- ----------------------------------------- 1) Add barium nitrate solution under acidic conditions (use an equal volume of hydrochloric acid) to the unknown solution 2) A white precipitate of barium sulphate forms if sulphate ions are present
How would you test for potassium and sulfate ions in the alum?
To test for potassium ions, you can use a flame test by heating a sample of the alum on a looped wire in a Bunsen burner flame; potassium ions produce a lilac flame color. For sulfate ions, you can add a few drops of barium chloride solution to a solution of the alum; a white precipitate (barium sulfate) forms if sulfate ions are present.
How many barium ions are there in 250 mL of a barium iodide solution that has an iodide ion concentration of 0.125 M?
The number of barium ions is 0,188.10e23.
Is barium iodide soluble?
Yes, barium iodide is soluble in water. It will dissolve and dissociate into barium ions (Ba2+) and iodide ions (I-) in solution.
Does barium sulphite precipitate when barium chloride is added to sodium sulphite solution?
Yes, barium sulfate precipitates when barium chloride is added to a sodium sulfite solution due to a double displacement reaction where barium ions from barium chloride react with sulfite ions from sodium sulfite to form a insoluble barium sulfate precipitate.
Assume that a solution forms the product barium carbonate The product formed is?
Barium carbonate is formed when barium ions (Ba^2+) react with carbonate ions (CO3^2-) in solution. This reaction produces a white precipitate of barium carbonate, which is insoluble in water.
I woke up this morning with a solution next to my bed and assumed it was a cationic solution and added some HCl to it which didn't produce a precipitate and flame test was pale green so what is in it?
My friend, it would appear you have a solution containing barium ions. If you would like add some sulfuric acid to precipitate the barium as barium sulfate.
What ions are left in solution after reacting 250.0 ml of a 0.10M Barium Nitrate solution with 200 ml of a .10 potassium phosphate solution?
The reaction between barium nitrate (Ba(NO3)2) and potassium phosphate (K3PO4) will form barium phosphate (Ba3(PO4)2) and potassium nitrate (KNO3). The ions left in solution will be potassium (K+) and nitrate (NO3-) ions from the potassium nitrate. The barium phosphate will precipitate out of solution.
