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There are several tests for sulfate ion to identify from other anions in qualitative analysis. Some of metal sulfate compounds are soluble in water and some metal sulfates form precipitates. Sulfate compounds of several metal cations form precipitates with specific colours.
29 Αυγ 2023 · Sulfate ion is a very weak base, while \(\ce{HSO4^{-}}\) is a fairly strong acid, with \(K_a = 0.01\). On the other hand, \(\ce{H2SO4}\) is a very strong acid. Because it is such a weak base, sulfate ion undergoes negligible hydrolysis in aqueous solution.
5 Αυγ 2024 · The test for the sulfate ion is: Acidify the sample with dilute hydrochloric acid. Add a few drops of barium chloride solution. A white precipitate of barium sulfate is formed, if the sulfate ion is present. Ba2+ (aq) + SO42- (aq) → BaSO4 (s) The test can also be carried out with barium nitrate solution.
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AQA GCSE Chemistry Chemical Analysis Testing for Sulfate Ions. To identify the presence of sulfate ions in a solution, follow these steps: 1. To acidify the sample, add a few drops of dilute hydrochloric acid (HCl). 2. Then, add a few drops of dilute barium chloride (BaCl 2) solution to the sample. 3.
4.8.3 Identification of ions by chemical and spectroscopic means. 4.8.3.5 Sulfates. Sulfate ions in solution produce a white precipitate with barium chloride solution in the presence of dilute hydrochloric acid. 4.8.3.1 Flame tests. Flame tests can be used to identify some metal ions (cations).
Testing for Sulfate ion (Sulphate SO42-) - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
