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How can saline hydrides removes traces o...

How can saline hydrides removes traces of water from organic compound?

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`H_2O` is a weak Bronsted acid Saline lydrides (e.g., NaH, `CaH_2`, etc.) releases `H^-` ion which act as a strong bronsted base. They, on combination with water, liberate hydrogen gas.
`Na^+ H^- + H_2O to NaOH + H_2`
As a result, these hydrides can be used to remove traces of water from organic compounds.
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