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Dip a copper coin in that unknown solution And make that solution slightly acidic. After about one hour, take out the copper coin and if there are green colours deposits then there is sulphate, otherwise not.
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Which anions give a white precipitate with silver nitrate?
chloride and sulphate ions give white precipitate with silver ion in aqueous solution but sulphate gives slightly dirty white.
What is the difference between sodium sulphate and sodium thiosulphate?
The polyatomic anions in sodium sulphate have the formula SO4-2, while the polyatomic anions in sodium thiosulphate have the formula S2O3-2.
Introduction determination of anions in aqueous solution?
introduction of anions
Will anions alone in a solution conduct electricity or do both anions and cations need to be present?
Anions alone in a solution could conduct electricity, if they were in contact with suitable electrodes. In general, however, anions alone in solution cannot exist for long, because the electrical potential of the resulting solution would be too high to be stable. One of the few practical exceptions occurs when cations can not dissolve because they are part of a polymer that has too high a molecular weight to be soluble in water, but the anions are soluble. If a polymer of this type is made into a thin and porous membrane, the anions can conduct electricity through the membrane, but only between the membrane and (i) an electrode or (ii) a solution that contains both anions and cations.
In an aqueous solution cations are attracted toward what?
Cations are attracted to anions.
Which anions give a white precipitate with silver nitrate?
chloride and sulphate ions give white precipitate with silver ion in aqueous solution but sulphate gives slightly dirty white.
What is the difference between sodium sulphate and sodium thiosulphate?
The polyatomic anions in sodium sulphate have the formula SO4-2, while the polyatomic anions in sodium thiosulphate have the formula S2O3-2.
Introduction determination of anions in aqueous solution?
introduction of anions
Why is the reaction between barium chloride and sodium sulphate also called presipitation reaction?
The classic test for sulphate is to add a barium salt ( BaCl2 or Ba(NO3)2), which are soluble. When the sulphate anions come into contact with the barium cations, they immeiately combine as a white solid and fall to the bottom of the reaction vessel. The chloride and/or nitrates anions remain in solution.
What are aqueous solutions and why are they attracted to anions?
An aqueous solution is brine; but aqueous solutions are not attracted by anions.
How do you identify each of the four anions if they were mixed together?
like that
Will anions alone in a solution conduct electricity or do both anions and cations need to be present?
Anions alone in a solution could conduct electricity, if they were in contact with suitable electrodes. In general, however, anions alone in solution cannot exist for long, because the electrical potential of the resulting solution would be too high to be stable. One of the few practical exceptions occurs when cations can not dissolve because they are part of a polymer that has too high a molecular weight to be soluble in water, but the anions are soluble. If a polymer of this type is made into a thin and porous membrane, the anions can conduct electricity through the membrane, but only between the membrane and (i) an electrode or (ii) a solution that contains both anions and cations.
What kind ions separate from acids in solution?
hydrogen ions and anions.
In an aqueous solution cations are attracted toward what?
Cations are attracted to anions.
What kind of ions separate from acid's in solution?
hydrogen ions and anions.
What is the molecular formula of de hydrated sulphate salt of calcium?
Calcium forms divalent cations and sulphate forms divalent anions. Therefore, the formula unit contains only one of each ion and has the formula CaSO4.
The passage of electricity through an eloctrolyte solution is caused by the movement of?
cations and anions
