Chemistry, asked by Anonymous, 9 months ago

Itna on complete combustion gives CO2 and water its source that the result are in accordance with the law of conservation of mass then the coefficient of oxygen is equals to
1.3
2.5/2
3.2
4.7/2​

Answers

Answered by siddharth909
0

Answer:

A hydrocarbon is a compound which consists of carbon and hydrogen only. It undergoes combustion forming carbon dioxide and water as products. 

Formula of carbon dioxide =CO2;

Molecular mass =12+32=44g 

Formula of water =H2O; 

Molecular mass =2+16=18g 

Mass of carbon in 0.88 g of CO24412×0.88=0.24g 

Mass of hydrogen in 1.8 g of H2O=!82×1.8=0.20g

Total masses of carbon and hydrogen in the products =0.24+0.20=0.44g 

This is equal to the mass of hydrocarbon before combustion. Thus, the results are in accordance with the law of conservation of mass.

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