What are the acids and bases of the following salts?
Na3PO4
PbS
KIO3
To determine the acids and bases of salts, you need to analyze the chemical formula of each salt and identify the ions present.
1. Na3PO4:
In Na3PO4, Na+ is a cation (positively charged ion) and PO43- is an anion (negatively charged ion). To identify the acids and bases, you need to consider if the anion can act as a base (accept a proton, H+) or if the cation can act as an acid (donate a proton).
In this case, the PO43- ion can accept protons, so it can act as a base. Therefore, Na3PO4 has a basic anion and an acidic cation.
2. PbS:
In PbS, Pb2+ is a cation, and S2- is an anion. Using the same approach, you need to determine if either ion can act as an acid or a base.
In this case, neither the Pb2+ ion nor the S2- ion can donate or accept protons, so neither acts as an acid or a base. Therefore, PbS does not have an acidic or basic character.
3. KIO3:
In KIO3, K+ is a cation, and IO3- is an anion. Analyzing the ions, you can assess if either one can act as an acid or a base.
In this case, the IO3- ion can accept protons, so it can act as a base. Hence, KIO3 has a basic anion and an acidic cation.
To summarize:
- Na3PO4 has a basic anion (PO43-) and an acidic cation (Na+).
- PbS does not have an acidic or basic character.
- KIO3 has a basic anion (IO3-) and an acidic cation (K+).