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    Chemistry A-Level

    Role of anhydrous salts as drying agents

    What Role of anhydrous salts as drying agents means in Chemistry A-Level, as defined for OCR.

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    An anhydrous salt such as MgSO₄ or CaCl₂ is added to the crude liquid in a small conical flask, where it hydrates by taking up water and clumps together.
    OCR · Alcohols, haloalkanes and analysis - 4.2.3 Organic synthesis

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