If chlorine was bubbled through aqueous iron 2sulphate solution state what would be observed and ionic equation
When chlorine gas (Cl2) is bubbled through an aqueous solution of iron(II) sulfate (FeSO4), the following observations and ionic equation can be described:
Observations:
1. A color change can be observed in the solution. The pale green color of the iron(II) sulfate solution will turn yellowish-brown due to the formation of a new compound.
2. A brown precipitate will form in the solution.
Ionic Equation:
The ionic equation for this reaction can be written as:
2 Fe2+ (aq) + Cl2 (g) -> 2 Fe3+ (aq) + 2 Cl- (aq)
In this equation, the chlorine gas is reduced to chloride ions, and the iron(II) ions are oxidized to iron(III) ions.
When chlorine gas is bubbled through aqueous iron(II) sulfate solution, several reactions occur that result in the formation of new compounds. The observations and ionic equation can be explained as follows:
1. Oxidation of iron(II) ions: Chlorine gas acts as an oxidizing agent and oxidizes the iron(II) ions (Fe2+) present in the solution to iron(III) ions (Fe3+). This is represented by the following half-reaction:
Fe2+ -> Fe3+ + e-
2. Reduction of chlorine gas: Chlorine gas is reduced to chloride ions (Cl-) as it gains electrons from the iron(II) ions. This is represented by the following half-reaction:
Cl2 + 2e- -> 2Cl-
Overall, the balanced ionic equation for the reaction can be written as follows:
2Fe2+ + Cl2 -> 2Fe3+ + 2Cl-
Observations:
1. Color change: The greenish-blue color of the iron(II) sulfate solution will gradually change to a yellowish-brown color due to the formation of iron(III) ions.
2. Gas evolution: Chlorine gas will be seen as bubbles in the solution as it reacts with the iron(II) sulfate.
3. Precipitate formation: In some cases, if the concentration of iron(II) sulfate is high, a brown precipitate of iron(III) hydroxide (Fe(OH)3) may form due to the reaction between the iron(III) ions and hydroxide ions present in the solution.
Change in color from green to yellow.
Fe^2+(aq) + Cl2(g) ==> Fe^3+(aq) + 2Cl^-(aq)