An organic compound contains 69% carbon and 4.8% hydrogen, the remainder being oxygen.

Monjur Alahi

An organic compound contains 69% carbon and 4.8% hydrogen, the remainder being oxygen. Calculate the masses of carbon dioxide and water produced when 0.20 g of this substance is subjected to complete combustion.


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Salim Ahmed Kawsar

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% of carbon = 12/44* Mass of CO2 formed/Mass of substance taken*100

69=12/44*Mass of CO2 formed/ 0.2*100

Mass of CO2 formed=0.506g

% of hydrogen= 2/18* Mass of H2O formed/ Mass of substance taken *100

4.8= 2/18 * Mass of H2O formed/6.2*100

= 0.0864g

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