25 may 2010 - HOW TO remember the PPT faster !!

DO U FIND IT HARD TO MEMORIZE TABLE 3 ??
IF YES , THIS IS A WAY OF MEMORIZING IT FASTER !! THIS IS ADAPTED FROM ONE OF OUR STUDENT, NONE OTHER THAN PAPIN .


remember this

WILLIAM BILANG GRANT RACIST NAJIS

if...
SALT SOLUTION + NAOH (aq)

WILLIAM (white ppt) - Al+3 , Pb+2 , Zn+2 , Ca+2

BILANG (blue ppt) - Cu+2

GRANT (green ppt) - Fe+2

RACIST (red brownish ppt) - Fe+3 

NAJIS (no ppt) - NH4

if..
SALT SOLUTION + NH3 (aq)


WILLIAM (white ppt) - Al+3 , Pb+2 , Zn+2

BILANG (blue ppt) - Cu+2

GRANT (green ppt) - Fe+2

RACIST (red brownish ppt) - Fe+3 

NAJIS (no ppt) - NH4 , Ca+2 

well thats all !!

enjoy mampus learning ur chem !!


all credits goes to : admin, papin