16.9 Acid-Base Properties of Salt Solutions
Ions are often modified when dissolved in solution. Examine the photos of Fe(III) salts and solutions. Why do they have different colors?
Fe(NO3)3.6H2O contains pink Fe(H2O)63+
Solutions may hydrolyze to give yellow Fe(H2O)5OH2+ or even reddish brown Fe(H2O)3(OH)3
FeCl3.6H2O contains ions such as yellow Fe(H2O)5Cl2+