2. A central nervous system (CNS) stimulant has the following composition: 49.48 % C, 5.19 % H; 16.48 % O and the rest is N. The approximate molecular mass for this compound is 194 g. Find the molecular formula of this compound. [C 12.011 amu; H 1.008 amu; O 15.999 amu; N 14.007 amu]

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