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A mono acid base gave the following resu...

A mono acid base gave the following results :
(1) On combustion 0.20 g of the base gave 0.58 g of `CO_2` and 0.15 g of water.
(ii) In Duma's method, 0.3 g of it gave 32.7 mL nitrogen at 288 K and 760 mm pressure.
(iii) 0.54 g of it required 12.50 mL of 0.4 N HCl for complete neutralisation.
Determine the molecular formula of the base.

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