0
How would you Test for the presence of sulfate ions in sulfuric acid?
Wiki User
∙ 12y ago
Add some litmus solution. If it's red, you have an acid.
If it was red, I would try adding copper and if it were H2SO4 then copper (II) sulfate, a greenish blue salt, would be produced. Or if you added salt (NaCl) it might produce TOXIC and DANGEROUS hydrogen chloride gas.
Or take a small sample and cook it down UNDER A FUME HOOD OR IN A WELL VENTILATED AREA WEARING A GAS MASK, then add a small piece of paper or some sawdust. If it is sulfuric acid, the cooked down stuff will be thick and syrupy. If paper is added, the syrup like substance will turn brown and the paper will decompose.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoAdd Barium Chloride and if there are sulphate ions then it will react to create Barium sulphate which is seen as a white precipitate.
Add your answer:
Earn +20 pts
Why do you not test sulfates with sulfuric acid?
I think it's because sulfate is the salt of sulfuric acid. They both have the same ions, therefore have no reaction. Its like adding sulfuric acid to sulfuric acid.
What will you see when you react sulfuric acid and barium hydroxide?
White precipitate will formed which is barium sulfate.
Why can't sulfuric acid be used instead of hydrochloric acid in the barium chloride test?
Because barium sulfate is a precipitate; barium chloride is soluble in water.
What is the importance of Molisch's test performed on carbohydrates?
Molisch's Test is a chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde. Its importance is that it tests the presence of carbohydrates based on their dehydration,
Is Na2SO4 soluble in water?
Yes, sodium sulfate is water soluble. Many sulfates are soluble in water. A notable exception is barium sulfate, whose insolubility forms the basis of a test for the presence of sulfate ions. Add barium chloride to a solution containing sulfate ions. The white barium sulfate precipitate is a positive test for sulfate ions.
Why do you not test sulfates with sulfuric acid?
I think it's because sulfate is the salt of sulfuric acid. They both have the same ions, therefore have no reaction. Its like adding sulfuric acid to sulfuric acid.
Test for presence of water in anhydrous copper sulphate?
In the presence of water the white anhydrous copper sulfate become blue.
How can you test a solution for the presence of ba ions?
Add a sulfate solution: BaSO4 precipitates!
What is the role of ammonium sulfate in test for presence of protein?
The ammonium sulfate denatures the protein, making it available for indicating reagents such as Biuret or Bradford
What will you see when you react sulfuric acid and barium hydroxide?
White precipitate will formed which is barium sulfate.
In lead acetate test what element in the amino acid is detected to be present in this test?
Sulfur is the element. The lead-acetate test detects presence of sulfate or sulfide.
How would you test the presence of sulfate ions?
To identify the presence of sulfate ions in a solution, follow these steps: To acidify the sample, add a few drops of dilute hydrochloric acid (HCl) to the sample. Then, add a few drops of dilute barium chloride (BaCl2) solution to the sample. If sulfate ions are present in the solution, a white precipitate of barium sulfate (BaSO4) will form. The reaction is: Ba²⁺ (aq) + SO4²⁻ (aq) → BaSO4 (s) For example, if we have a solution of magnesium sulfate (MgSO4), the reaction would be: BaCl2 (aq) + MgSO4 (aq) → BaSO4 (s) + MgCl2 (aq) By observing the formation of the white precipitate, we can confirm the presence of sulfate ions in the sample.
Why can't sulfuric acid be used instead of hydrochloric acid in the barium chloride test?
Because barium sulfate is a precipitate; barium chloride is soluble in water.
What is the importance of Molisch's test performed on carbohydrates?
Molisch's Test is a chemical test for the presence of carbohydrates, based on the dehydration of the carbohydrate by sulfuric acid to produce an aldehyde. Its importance is that it tests the presence of carbohydrates based on their dehydration,
What test would you run to test for the presence of a polypeptide?
Biuret test
Is Na2SO4 soluble in water?
Yes, sodium sulfate is water soluble. Many sulfates are soluble in water. A notable exception is barium sulfate, whose insolubility forms the basis of a test for the presence of sulfate ions. Add barium chloride to a solution containing sulfate ions. The white barium sulfate precipitate is a positive test for sulfate ions.
How would you test for potassium and sulfate ions in the alum?
by adding acids in alum crystals
