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A certain metal M forms an insoluble oxa...

A certain metal M forms an insoluble oxalate complex `M_(4)O_(3)(C_(2)O_(4))_(3).12 H_(2)O`. If `2.38` gm of the complex are formed from 1 gm of oxalic acid `(H_(2)C_(2)O_(4))`, what is the atomic weight of M ?
[Write nearest integral valve].

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