The study of relationship between the amounts of reactants and products as indicated by the balanced chemical equation is called stoichiometry.
Explanation:
Stoichiometry is used to calculate the amount of the product formed or that of the reactant required in a reaction.
Stoichiometric calculations are performed by the following assumptions in hand:
- Reactants are completely converted into products.
- No side-reaction occurs.
- Stoichiometry calculations are based on the two laws of chemical combinations:
(a) Law of Conservation of Mass
(b) Law of Definite Proportions
Types of relationships, which can be studied with the help of stoichiometry,
1) Mass – Mass relationship:
From the given mass of a substance, mass of the any other substance can be calculated.
2) Mass – Mole relationship:
From the given mass of a substance, moles of the any other substance can be
calculated. Reverse of it can also be done.
3) Mass – Volume relationship:
From the given mass of a substance, volume of the any gaseous substance can be
calculated. Reverse of it can also be done.
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