The dibromo alkane compound contains 26.1% carbon by weight. determine the molecular formula of an alkene
| August 28, 2021 | education
Determine the molecular formula of an alkene if it is known that the dibromo derivative of alkene contains 26.1% carbon by weight.
We write down the general formula of the dibromo derivative of alkene, is as follows.
CnH2nBr2;
We write the following expression.
0.261 = 12n / 14n + 160;
Find the unknown value of n.
3.654n + 41.76 = 12n;
8.346n = 41.76;
n = 5;
Next, we compose the molecular formula of the resulting alkene.
C5H12.
Answer: The result is propene.
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