Question

1.
Define equivalent weight of
(a) an acid
(b) a base
c) oxidising agent.
(d) a reducing agent.​

Answer 1

Answer:

(a) An equivalent mass of an acid.

Equivalent mass of an acid is the number of parts by mass of the acid which contains 1.008 part by mass of replaceable hydrogen atom.

Equivalent mass of an acid = (Molar mass of the acid) / (Basicity of the acid)

(b) An equivalent mass of a base.

It is defined as the number of parts by mass of the base which contains one replaceable hydroxyl ion or which completely neutralizes one gram equivalent of an acid.

Equivalent mass of a base = (Molar mass of the base) / (Acidity of the base)

(c) An equivalent mass of an oxidizing agent.

It is defined as the number of parts by mass of an oxidising agent which can furnish 8 parts by mass of oxygen for oxidation.

(d) An equivalent mass of a reducing agent.

It is defined as the number of parts by mass of the reducing agent which is completely oxidised by 8 parts by mass of oxygen or with one equivalent of any oxidising agent.