Who has one high chemical compulsory 2 of the third chapter "organic compounds" knowledge induction? Be more comprehensive.

Who has one high chemical compulsory 2 of the third chapter "organic compounds" knowledge induction? Be more comprehensive.

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One Chemistry Compulsory Two Organics Calculation 0.2Mol of a hydrocarbon is completely combusted in pure oxygen, and the combustion product passes through the concentrated sulfuric acid and concentrated sodium hydroxide solution in turn. After the experiment, the weight gain of concentrated sulfuric acid is 21.6g and that of sodium hydroxide is 44g.

Weight gain of concentrated sulfuric acid - water absorption 21.6g. n (H2O)=21.6/18mol=1.2mol, i.e. n (H)=2.4mol
Weight gain of sodium hydroxide solution --- absorb carbon dioxide 44g, then n (CO2)=44/44mol=1.0mol, i.e. n (C)=1.0mol
Then n (C): n (H)=1:2.4=5:12
Let the chemical formula be CxHy
Yes:0.2 x =1
Y =12
I don't need to find the isomer of chemical formula C5H12.
Quasi-secondary bar come on (years old, I'm also high school,5555)