Aqueous Ions Flashcards
What are metal-aqua ions?
When water molecules form coordinate bonds with the metal ion.
Why are +3 metal-aqua ion solutions more acidic compared to +2 metal-aqua ions solutions?
The metal 3+ ions are smaller and have a higher charge compared to metal 3+ ions. This means they have a larger charge density and are more polarising than the 2+ ions. They can pull the electrons in the coordinate bond towards it and away from the oxygen in the water molecules. This weakens the O-H bond. This means that more H+ ions are released.
What observation can be made when [Cu(H2O)6]2+ reacts with hydroxide ions, excess hydroxide ions, ammonia, excess ammonia and sodium carbonate?
What observation can be made when [Al(H2O)6]3+ reacts with hydroxide ions, excess hydroxide ions, ammonia, excess ammonia and sodium carbonate?
What observation can be made when [Fe(H2O)6]2+ reacts with hydroxide ions, excess hydroxide ions, ammonia, excess ammonia and sodium carbonate?
What observation can be made when [Fe(H2O)6]3+ with hydroxide ions, excess hydroxide ions, ammonia, excess ammonia and sodium carbonate?
