已知化学元素百分含量,求分子式An organic compound containing only C,H and Br was found to contain 12.8 % by mass carbon and 1.79 % by mass hydrogen.Determine the empirical formula of the compound

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已知化学元素百分含量,求分子式An organic compound containing only C,H and Br was found to contain 12.8 % by mass carbon and 1.79 % by mass hydrogen.Determine the empirical formula of the compound
已知化学元素百分含量,求分子式
An organic compound containing only C,H and Br was found to contain 12.8 % by mass carbon and 1.79 % by mass hydrogen.Determine the empirical formula of the compound

已知化学元素百分含量,求分子式An organic compound containing only C,H and Br was found to contain 12.8 % by mass carbon and 1.79 % by mass hydrogen.Determine the empirical formula of the compound
这题应该简单,我想回答应该不用用英文回答吧;或许你对题目不了解.大致意思如下:一个有机物化合物只含有C,H,Br三种元素,其中C占12.8%,H占1.79%,问这个化合物的结构简式.
C,H,Br的相对原子质量分别为12,1,80,而又一直碳氢溴的分别比例为12.8,1.79和85.41(%).设化合物的简式为CxHyBrz,则:12.8:1.79:85.41=12x:y:80z.算出最简比就行了.

该化合物的分子式为,C3H5Br3.