2 1Đ­[CH2]6CH3--OOCH+ HOOC COOHOH­ COOTOC CH3[CH2]7COOH

9.2 1đ

­

[CH

2

]

6

CH

3

-

-

OOC

H

+

HOOC

COOH

OH

­

COO

t

o

C CH

3

[CH

2

]

7

COOH