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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 d block metal cations form colours.
12 Αυγ 2024 · This is easily seen as the more reactive metal slowly disappears from the solution, displacing the less reactive metal. For example, magnesium is a reactive metal and can displace copper from copper (II)sulfate solution: Mg + CuSO4→ MgSO4 + Cu.
29 Αυγ 2023 · Sulfate ion is a very weak base, while HSO−4 HSO 4 − is a fairly strong acid, with Ka = 0.01 K a = 0.01. On the other hand, H2SO4 H 2 SO 4 is a very strong acid. Because it is such a weak base, sulfate ion undergoes negligible hydrolysis in aqueous solution.
29 Νοε 2021 · Use our note to revise the tests for Group 2, ammonium, halide, hydroxide, sulfate and carbonate ions. Then, test yourself with our exam questions.
1 Ιουν 2022 · The behavior of galvanized steel exposed to strong alkaline solutions (pH values of 12.7) with a fixed concentration of sulfate ions of 0.04 M is studied here. Electrochemical measurement...
Which solution could be used to precipitate the barium ion, Ba 2+, in a water sample: sodium chloride, sodium hydroxide, or sodium sulfate? What is the formula for the expected precipitate? Answer. sodium sulfate, BaSO 4
[(4 H atoms)(+1)] + [(1 N atom)(−3)] = +1, the charge on the NH 4 + ion. For SO42−, oxygen has an oxidation state of −2 (rule 5), so sulfur must have an oxidation state of +6: [(4 O atoms) (−2)] + [(1 S atom)(+6)] = −2, the charge on the sulfate ion. d.
