Preparation of standard solution of Oxalic acid (0.1N)।Primary standard
Автор: Chemistry: The Way of Life
Загружено: 2026-01-30
Просмотров: 74
Описание:
A standard solution is a solution with an accurately known concentration, typically prepared by dissolving a precise mass of a high-purity solute (primary standard) in a solvent to a specific volume, usually measured in moles per liter (𝑚𝑜𝑙/𝐿). They are essential in analytical chemistry for determining the concentration of unknown substances through techniques like titration
Types:
Primary Standard: A highly pure, stable, and non-hygroscopic substance (e.g., sodium carbonate, potassium hydrogen phthalate) that can be weighed directly.
Secondary Standard: A solution whose concentration is measured by titration against a primary standard because the solute is not pure or stable enough (e.g 𝑁𝑎𝑂𝐻, 𝐻𝐶𝑙).
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