By adding acid to a basic solution of pH 12, the overall solution
becomes less basic and the Ph of solution decreases to a value of 7, which is
known as the pH of a neutral solution, i.e neither basic nor acidic. This process
is called neutralizing the base.
The iron (III) has 5 valence electrons and the complex is in a octahedral geometry. Since water as a ligand has a small splitting energy, the complex will be a high spin and all of the five electrons will be unpaired.
Answer:
C
Explanation:
Hydronium (H₃O+) is the same as H+ (aq) because of the same net charge. The acidic property of a solvent or solution is governed the amount of H+ ion in it. The higher the H+ ions the lower the pH. In pure water H₃O+ and OH- are in equal amount. More of OH- ions turn the solution basic.