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2009-09-27T21:57:45+02:00
86 = 12n +2n +2
84=14n n =6 heksan C6H14

128 = 12n + 2n + 2
126=14n n=9 nonan C9H20
2009-09-27T21:58:10+02:00
12n+2n+2=86
14n=86
n=6
C6H14

12n+2n+2=128
n=9
C9H20
2009-09-27T22:01:10+02:00
CnH2n+2

a) CnH2n+2 = 86u
12n + 2n + 2u = 86u
14n = 84u
n = 6

heksan
C₆H₁₄

b) CnH2n+2 = 128u
12n+2n+2=128u
14n=126u
n = 9

nonan
C₉H₂₀
1 5 1