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A dibasic anhydrous acid produced upon c...

A dibasic anhydrous acid produced upon combustion 0.195g of `CO_(2)` and 0.04g of `H_(2)O`. 0.5g of the salt of this acid when ignited, converted to 0.335g of pure silver. Find the molecular formula of the dibasic acid.

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`(COOH)_(2)`
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