a.
lcanul raspunde la CnH2n+2 => C27H56 , dodeheptan
b.
M.C27H56 = 27x12+56x1 = 380 g/mol
380 g alcan ......... 324 g C .............. 56 g H
100% ..................... a% ......................... b%
=85,26% =14,74%
c.
solid
d.
insolubil in apa , dar solubil in solventi organici