An Organic Substance (0.2115 G) On Complete Combustion Gave 0.4655 G Of Carbon Dioxide And 0.2533 G Of Water. Determine The Percentage Composition Of The Compound.

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Question

An organic substance (0.2115 g) on complete combustion gave 0.4655 g of carbon dioxide and 0.2533 g of water. Determine the percentage composition of the compound.

Solution

Correct option is

C = 60.03%, H = 13.30%, O = 26.67%

 

Mass of CO2 formed = 0.4655 g   

Mass of H2O formed = 0.2533 g 

Mass of the organic substance taken = 0.2115 g 

Percentage of carbon 

          

          

           = 60.03    

Percentage of hydrogen  

             

           

            = 13.30 

Percentage of oxygen   

            = 100 – (60.03 + 13.30) 

            = 26.67 

Composition of the substance :

C = 60.03%, H = 13.30%, O = 26.67%.

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Q5

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