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Fecl3 on reaction with K4[Fe(CN)6] in aq solution gives blue colour.concentration of fecl3 is 0.01 M and that of K4[Fe(CN)6] is 0.1M what will happen when these will be separated by semi permeable membrane ?
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Fecl3 on reaction with K4[Fe(CN)6] in aq solution gives blue colour.co...
The equation for the reaction of FeCl3 and K4 [Fe(CN)6] is

  4 FeCl3 + 3 K4 [Fe(CN)6] → Fe4[Fe(CN)6] + 12 KCl
  Ferri-ferro cyanide
Therefore the blue colour of the solution is due to the formation of ferri-ferro cyanide complex. When 0.01M of FeCl3and 0.1M potassium ferrocyanide are placed in a beaker and seperated by a semi permeable membrane the movement of only water molecules will take place across the membrane from FeCl3 side to potassium ferrocyanide side due to osmosis (Osmosis is the diffusion of solvent molecules through a semi permeable membrane into a region of high solute concentration) . The movement of water molecules will stop when there equal concentration of solutions on both sides of the membrane. This means that no FeCl3molecules would move across the membrane to potassium ferrocyanide side. Hence there will be no formation of ferri-ferro cyanide complex because of which blue colour will not appear in potassium ferrocyanide side.
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Fecl3 on reaction with K4[Fe(CN)6] in aq solution gives blue colour.co...
Separation of FeCl3 and K4[Fe(CN)6] by Semi-Permeable Membrane

When FeCl3 and K4[Fe(CN)6] are separated by a semi-permeable membrane, several processes occur due to the difference in concentration and the properties of the compounds involved.

Osmosis
Osmosis is the movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane. In this case, the solvent is water and the solute is the dissolved FeCl3 and K4[Fe(CN)6] molecules.

1. Initially, water molecules will move from the side of lower solute concentration (0.1 M K4[Fe(CN)6]) to the side of higher solute concentration (0.01 M FeCl3) through the semi-permeable membrane.
2. This movement of water will continue until the concentration of water molecules is equal on both sides of the membrane.

Diffusion
Diffusion is the movement of solute molecules from an area of higher concentration to an area of lower concentration. In this case, it refers to the movement of FeCl3 and K4[Fe(CN)6] molecules.

1. FeCl3 molecules will diffuse from the side of higher concentration (0.01 M) to the side of lower concentration (0.1 M) through the semi-permeable membrane until equilibrium is reached.
2. Similarly, K4[Fe(CN)6] molecules will also diffuse from the side of higher concentration (0.1 M) to the side of lower concentration (0.01 M) through the membrane.

Ionization and Complex Formation
FeCl3 dissociates into Fe3+ ions and Cl- ions in aqueous solution, while K4[Fe(CN)6] dissociates into K+ ions, [Fe(CN)6]4- ions.

1. FeCl3 will ionize to release Fe3+ ions and Cl- ions.
2. [Fe(CN)6]4- ions from K4[Fe(CN)6] will form a complex with Fe3+ ions, resulting in the formation of a blue-colored complex, [Fe(CN)6]4-Fe3+.
3. The blue color is due to the absorption of certain wavelengths of light by the complex.

Conclusion
When FeCl3 and K4[Fe(CN)6] are separated by a semi-permeable membrane, osmosis will occur, resulting in the movement of water molecules. Diffusion will also take place, causing the FeCl3 and K4[Fe(CN)6] molecules to move from areas of higher concentration to areas of lower concentration. The Fe3+ ions and [Fe(CN)6]4- ions will undergo ionization and complex formation, resulting in the formation of a blue-colored complex.
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Fecl3 on reaction with K4[Fe(CN)6] in aq solution gives blue colour.concentration of fecl3 is 0.01 M and that of K4[Fe(CN)6] is 0.1M what will happen when these will be separated by semi permeable membrane ?
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Fecl3 on reaction with K4[Fe(CN)6] in aq solution gives blue colour.concentration of fecl3 is 0.01 M and that of K4[Fe(CN)6] is 0.1M what will happen when these will be separated by semi permeable membrane ? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Fecl3 on reaction with K4[Fe(CN)6] in aq solution gives blue colour.concentration of fecl3 is 0.01 M and that of K4[Fe(CN)6] is 0.1M what will happen when these will be separated by semi permeable membrane ? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Fecl3 on reaction with K4[Fe(CN)6] in aq solution gives blue colour.concentration of fecl3 is 0.01 M and that of K4[Fe(CN)6] is 0.1M what will happen when these will be separated by semi permeable membrane ?.
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