A mixture of hydrocarbons contains 34.8% heptane, C7H16, 10.1% nonane, C9H20, and 55.1% octane, C8H18. The mixture is combusted in an excess of oxygen. What mass of CO2 is generated from the combustion of 17.0 kg of the mixture?
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The branch of science which deals with chemicals is called chemistry.

The correct answer is 14.277 kg

The calculation part is as follows:-

Total mass-produced is

Hence, the correct answer is - 14.277kg.

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Mass Heptane : 0.348 x 17 = 5.916 kg

mass C in Heptane (MW=100.21 g/mol) :

Mass Nonane : 0.101 x 17 = 1.717 kg

mass C in Nonane (MW=128.2 g/mol) :

Mass Octane : 0.551 x 17 = 9.367 kg

mass C in Otane (MW=114.23 g/mol) :

Total mass produced :

4.959+1.446+7.872=14.277 kg

the product of the pressure and volume is also constant