What are the acids and bases of the following salts?

Na3PO4
PbS
KIO3

Do you meant on dissociation?

phosphoric acid, sodium hydroxide
lead hydroxide, hydrogen sulfuric
potasslim hydroxide, idoic acid.

I am not certain of your question.

To determine the acids and bases present in salts, we need to understand their composition and ionization behavior.

1. Na3PO4:
Breaking down the formula, we have sodium (Na+) ions and phosphate (PO43-) ions. When sodium phosphate dissociates in water, it forms sodium ions (Na+) and phosphate ions (PO43-).
The sodium ion (Na+) is derived from a strong base (NaOH), so it does not act as an acid or base. On the other hand, the phosphate ion (PO43-) can accept a hydrogen ion (H+) from water, making it a weak base.

2. PbS:
Breaking down the formula, we have lead (Pb2+) ions and sulfide (S2-) ions. When lead sulfide dissociates in water, it forms lead ions (Pb2+) and sulfide ions (S2-).
The lead ion (Pb2+) does not act as an acid or base, as it is derived from a neutral compound. The sulfide ion (S2-), however, can react with water to form hydroxide ions (OH-) and act as a base.

3. KIO3:
Breaking down the formula, we have potassium (K+) ions and iodate (IO3-) ions. When potassium iodate dissociates in water, it forms potassium ions (K+) and iodate ions (IO3-).
The potassium ion (K+) does not act as an acid or base. The iodate ion (IO3-) can accept a hydrogen ion (H+) from water, making it a weak base.

To summarize:
- Na3PO4 contains a weak base (phosphate ion).
- PbS contains a weak base (sulfide ion).
- KIO3 contains a weak base (iodate ion).

Please note that these ions can behave as acids or bases in the presence of other substances or under specific conditions.