What does it mean to say that water autoionizes? View Available Hint(s) What does it mean to say that water autoionizes? Water w
ill cause many ionic compounds to dissociate without additional input of energy. Water is a good conductor of electricity; and when it conducts, it ionizes. Water is polar, similar to an ion being polar. Therefore, it is autoionic. A water molecule can donate a proton to another water molecule, forming H3O+ and OH− in solution.
The chemical formula of the precipitate is Fe(OH)₃
Explanation:
Fe(NO₃)₃ and K₂CO₃ are strong electrolytes and completely dissociate in water. Carbonate ions is a weak base and combine with water to form hydroxide ions (OH⁻), CO₃²⁻ + H₂O <----------------> HCO₃⁻ + OH⁻
Ferric, Fe (III), combines with these hydroxide ions to form insoluble precipitates. Fe(OH)₃ is only partially soluble i.e., it does not completely dissociate in water. When the solutions of Fe(NO₃)₃ and K₂CO₃ are mixed, Fe(OH)₃ precipitates out due to the strong electrostatic attraction between Fe (III) and hydroxide ions.
