How to calculate the Equivalent Weight?
The Equivalent Weight of a compound is the result of dividing the molecular weight by the charge number of that compound.
E = Molecular Weight / n-factor (charge number)
where,
E is Equivalent Weight
Charge number indicates how many protons or hydroxide-equivalents the compound has
The equivalent weight of the compound can be defined as the weight (or mass) of a substance that will include a single reactive proton (or hydrogen ion, H+) or a single reactive hydroxide ion (OH–). The idea of equivalent weight is necessary because some compounds are doubly reactive for every mole present because they have the capacity to supply or receive more than one proton.
Hydrogen has an atomic mass of one (1.008 to be precise). Hydrogen’s valency is always 1. As a result, hydrogen has an equal weight of 1. In the majority of reactions, oxygen has a valency of 2.
Equivalent Weight
The most commonly used phrase in chemistry is “equivalent weight,” which is also one of the fundamental concepts in physical chemistry. Equivalent weight commonly referred to as a gram equivalent is the mass of one equivalent or the mass of a particular material that will combine with or replace a specific amount of another substance. To say it another way, the mass of a substance that can displace 1.008 grams of hydrogen or 8.0 grams of oxygen or 35.5 grams of chlorine is its gram equivalent or equivalent weight. Let us study the Equivalent Weight in detail in this article.