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When 0.3 g of a metal is dissolved in di...

When 0.3 g of a metal is dissolved in dilute HCl the volume of `H_(2)` gas liberated is 110 mL at `17^(@)C` and 755 mm Hg of pressure. [Aqueous tension at `17^(@)C=14.4` mm Hg] Determine the equivalent mass of the metal.

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