Question

Write the name and formula of a basic salt?

Answer 1

Normally we know that salt is formed by action of acid and base. Salt is a compound which is a combined complex of cation and anion. It can make both acidic as well as basic solutions.

Complete step by step answer: Firstly it is very important to know about basic salt. When an acid and a base reacts as it proceeds the process of neutralization and salts are produced as a product. Basic salts are formed by action of strong base and a weak acid. The conjugate base from weak acid hydrolysis to form a weak solution which is also the main concept that accounts for the basicity. We know that sodium hydroxide is a strong base (NaOH) is a strong base and carbonic acid (${{H}_{2}}C{{O}_{3}}$) is a weak acid.
- If a strong base like sodium hydroxide and weak acid like carbonic acid are allowed to react. Basic salt (Sodium carbonate) is produced.
$2NaOH+{{H}_{2}}C{{O}_{3}}\to N{{a}_{2}}C{{O}_{3}}+2{{H}_{2}}O$
- The carbonate ion is capable of deprotonation of water, which leads to an increase in pH. Therefore, $N{{a}_{2}}C{{O}_{3}}$ is a basic salt.
- Sodium carbonate is basic salt. Its chemical formula is $N{{a}_{2}}C{{O}_{3}}$. It is white crystalline solid and is a strong alkali base. It is commonly known as washing soda and used in almost all cleaning products, in antacid etc.

Note: Acidic salt is formed by neutralization of strong acid and weak base. The ion in salt that is capable of pronating water accounts for the acidic nature of acidic salt. Exact converse is explained for basic salt. The basic salt is formed by neutralization of strong base and weak acid. The ion in salt that is capable of deprotonation of water accounts for the basic nature of the basic salt.