Mathematics · Quantitative Analysis and Calculations
0.25 g of an organic compound 'A' containing carbon, hydrogen, and oxygen was analyzed using the combustion method. The increase in mass of the CaCl2 tube and KOH (potash) tube at the end of the experiment was found to be 0.15 g and 0.1837 g, respectively. What is the percentage of oxygen in compound A? (Nearest integer) (Given: Molar mass in g mol-1 H: 1, C: 12, O: 16)
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