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6 April, 09:59

Anhydrous calcium chloride removes water vapor from the air inside a container having an air-tight seal called a desiccator. Explain

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  1. 6 April, 10:02
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    Hello!

    The anhydrous calcium chloride (CaCl₂) is a hygroscopic substance. That means that the substance has a very high affinity with water (H₂O).

    Water vapor from the air reacts with CaCl₂ to form Hydrated complexes following this reaction:

    CaCl₂ + nH₂O → CaCl₂*nH₂O

    In this reaction, water vapor is consumed and removed from the air, lowering the humidity of the air inside the desiccator.
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