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Compelete reaction of 2.0 g calcium (at ...

Compelete reaction of 2.0 g calcium (at wt. = 40) with excess HCl produces 1.125 L of `H_(2)` gas. Complete reaction of the same wuantity of another metal "M" with excess HCl produces 1.85 L of `H_(2)` gas under identical conditions . The equivalent weight of "M" is closest to :

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