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一定质量的某有机物在空气中完全燃烧时,生成8.8克CO2和5.4克H2O,则该有机物的化学式为( )
A.C2H6 B.C3H8 C.CH3OH D.C2H4
I want to know the answer of this question.I don't want to make friend with anybody.
人气:170 ℃ 时间:2019-08-21 07:56:52
解答
8.8/44*=0.2mol 2*5.4g/18=0.6mol
0.2:0.6=2:6
所以C和H是2:6
所以选A
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