WHY IN THE FORMULA OF SODIUM ACETATE CH3COONa SODIUM IS ALWAYS WRITTEN AT BACK ??? PLZ ANYONE EXPLN IN DETAIL ....

Sodiun Acetate is an organometallic salt. It is the salt
of Acetic acid.Acetic acid has the formula CH3COOH. The hydrogen to be replaced is the
last one. Thus sodium is written at last.

The
reaction can be written as:

H 
O                                     H  O

| 
||                                      |  ||

H-C-C-O-H  
+  Na  -------->  H-C-C-O-Na  +
H2

|                                         
|

H                                        
H

(Acetic Acid)    (Sodium)          (Sodium
Acetate)

Due to the appearence of sodium in the
end of the compound chain i.e. in COO- side the formula is CH3COONa not
NaCH3COO