[ | DESCARGA MP3 | ]
.mp3http://www.murciarock.org/fonoteca/cation.mp3
... net negative charge thus generally interested in cation exchange processes anion exchange occurs but is not very prevalent in aquatic systems with normal pH values Cation Exchange Mechanisms are poorly understood and a topic of debate but is driven by net negative surface charge on mineral surfaces...
.ppthttp://paws.wcu.edu/jmiller/423_Slide_Sets/Cation_Exchange.ppt
ROUP II CATIONS Group II Cations Hg2 Pb2 Bi3 Cu2 Cd2 As3 Sb3 and Sn4 Precipitating Agent S from thioacetamide in acidic solution PROCEDURE II O To 2 ml of Group II unknown or decantant from Procedure I 1 add 6 MNH4OH to make the solution just alkaline then add 6 M HCl dropwise till the solution is just acidic then add 5 ml of HCl in addition Add 2 ...
.dochttp://bnaddy.columbiastate.edu/HANDOUTS/CATIONS/2CATION.DOC
ROUP III CATIONS A INTRODUCTION Ions in the Group Al3 Cr3 Fe3 Fe2 Mn2 Co2 Ni2 Zn2 Precipitating Agent S2 from thioacetamide in ammonia ammonium chloride buffer Cr3 and Al3 precipitate as hydroxides The other ions in the group precipitate as sulfides Table III 1 ION COLOR OF SOLUTION OF ION PRECIPITATED FORM OF ION COLOR OF THE PRECIPITATE Al3 Color...
.dochttp://bnaddy.columbiastate.edu/HANDOUTS/CATIONS/3CATION.DOC
ROUP IV CATIONS QUALITATIVE ANALYSIS A INTRODUCTION Ions in the Group Ca2 Sr2 Ba2 Precipitating Agent NH4 2 CO3 in ammonical buffer Inspection of the periodic chart will show that the ions of this group all fall in Group II A of the chart Due to the principle of periodicity of chemical properties it is reasonable to expect that all three of these i...
.dochttp://bnaddy.columbiastate.edu/HANDOUTS/CATIONS/4CATION.DOC
...GROUP V CATION CATIONS NH4 Na K and Mg2 Precipitating agent There is no precipitating agent for this group PROCEDURE V 1 Test of NH4 should be done on original solution Place 5 to 10 drops of the original solution in a small beaker add equal volume of water then add 1 ml of NaOH Immediately cover...
.dochttp://bnaddy.columbiastate.edu/HANDOUTS/CATIONS/5CATION.DOC
.ppthttp://www.icb.usp.br/~cassola/fesbe/Canais_Cation.ppt
.mp3http://sites.google.com/site/doncreepermusic/Home/VayCation.mp3
.swf...br/games_online/gameson/arquivos/games/holiday-play-cation-dyehard.swf
.swf.../gratisjogos.uol.com.br/arquivos/games/holiday-play-cation-dyehard.swf