12. A hydrocarbon has a molecular weight of approximately 60 and
contains 17.2% hydrogen. What is the molecular formula of the hydrocarbon?
Write all of the structural isomers that have this formula.
13. A hydrocarbon has a molecular weight of 56.0 and contains 85.7%
carbon. What is its molecular formula? What structural and geometric
isomers could it have?
14. Write equations for the reactions of 1-pentene with each of
the following reagents:
(a) Br2
(b) H2SO4
(c) HI
(d) HOCI
(e) H2 and
Ni
In each case, show the structure of the product organic molecule.
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