Compound X, isolated from lanolin (sheep’s wool fat), has

Answer :

Step 1

(a) To write an empirical formula of the compound X.

62% means 62 gram carbon; 10.4 gram hydrogen;.

1. find the mole of each element:

mole C 62 g/12.01=5.17 mol

mole H 10.4/1.008=10.31 mol .

2. Divided each by the smallest number; 5.17mol is the smallest number from above to get our subscript.

C: 5.17/5.17=1

H: 10.31/5.17=2

The molecular formula of compound X is( CH2)

(b) A molecular weight determination showed that compound X has a molecular weight of approximately 117. Find the molecular formula of compound X.

The molecular formula of compound X we got is CH2 and molecular weight is 14 ,

                                       =117/14.

                                       =8.3

The molecular formula of the compound is (CH2)*8=C8H16.

(C) Many possible structures have this molecular formula. Draw complete structural formulas for four of them.

Possible structures of cyclo octane :

1)cis -2 octene

2)Z-2-octene