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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-
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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
What else can I help you with?
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.
How many ions are present in ammonium sulphate?
Ammonium sulphate consists of two ions: ammonium (NH4+) and sulphate (SO4^2-).
What is the charge of sulphate ions?
The charge of sulfate ions is 2-.
What is the type of particle of sodium sulphate?
Sodium sulphate is an ionic compound composed of sodium ions (Na+) and sulphate ions (SO4^2-). It is not a single particle but a crystalline solid made up of a repeating pattern of these ions.
Does copper sulphate dissolved in water?
Yes, copper sulphate can dissolve in water. When added to water, copper sulphate dissociates into copper ions (Cu2+) and sulphate ions (SO4 2-), forming a blue-colored solution.
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.
How many ions are present in ammonium sulphate?
Ammonium sulphate consists of two ions: ammonium (NH4+) and sulphate (SO4^2-).
Why is barium chloride and alcohol used in the limit test for sulphates?
Barium chloride is used in the limit test for sulphates because it forms a precipitate with sulphate ions. Alcohol is added to the mixture to promote the formation of small crystals, which makes it easier to detect the presence of sulphate ions in the sample.
How can you test a solution for the barium ions?
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 is the charge of sulphate ions?
The charge of sulfate ions is 2-.
What is the type of particle of sodium sulphate?
Sodium sulphate is an ionic compound composed of sodium ions (Na+) and sulphate ions (SO4^2-). It is not a single particle but a crystalline solid made up of a repeating pattern of these ions.
Does copper sulphate dissolved in water?
Yes, copper sulphate can dissolve in water. When added to water, copper sulphate dissociates into copper ions (Cu2+) and sulphate ions (SO4 2-), forming a blue-colored solution.
What happens to copper sulphate when added to water?
When copper sulphate is added to water, it dissociates into copper ions (Cu2+) and sulphate ions (SO4 2-). This forms a blue-colored solution due to the presence of copper ions in the water.
What is the symbol potassium sulphate?
The symbol for potassium sulphate is K2SO4 . It contains K+ and SO42- ions.
How do you determine the sulphate?
Sulphate ions can be determined using methods such as gravimetric analysis, titration with barium chloride, or ion chromatography. In gravimetric analysis, sulphate ions are precipitated as barium sulphate and weighed. Titration with barium chloride involves adding a known volume of barium chloride solution to the sample containing sulphate ions, and the excess barium chloride is back-titrated with a standard solution of a titrant such as potassium chromate. In ion chromatography, separation and quantification of sulphate ions are done using a chromatographic column with specific properties.
Where does the sodium sulphate go when copper sulphate mixes with sodium hydroxide?
Nowhere. I assume you are talking about mixing solutions. The sodium ions and sulpahate ions remain in solution.
What is the effect of excess of sulphate ions in drinking water?
Excess of sulphate ions in drinking water can give it a bitter taste and cause gastrointestinal issues like diarrhea in some people. High levels of sulphate can also have a laxative effect and may impact the taste and quality of the water.
