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Standard Solutions

A standard solution is a solution of known concentration.
It can be prepared by dissolving an accurately weighed solid in a solvent and making this up to an exact volume with a volumetric flask.Standard solutions are normally used in titrations to determine unknown information about another substance. Volumetric flasks are very accurate.A 100cm3 volumetric flask has a tolerance of ± 0.20cm3 and a 250cm3 volumetric flask has a tolerance of ± 0.40cm3.

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Specification: OCR Chemistry A (H032), AS-level, 2.1.3 Amount of substance. Topic: Amount of Substance.

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Titration
An analytical technique used to determine the volume of one solution that exactly reacts with a known volume of another solution.

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