Pentaammine sulphatocobalt(III) Bromide yields a dull yellow ppt. with AgNO3 while Pentaammine bromidocobalt(III) Sulphate does not. why?
Dear Student,
Pentamminesulphatocobalt(III) bromide is [Co(NH3)5(SO4)] Br while Pentamminebromidocobalt(III) sulphate is [Co(NH3)5Br] SO4.
In [Co(NH3)5(SO4)] Br, Br is ionisable and so it can react with AgNO3 to give AgBr which is the yellow ppt. while in , Br is inside the coordination sphere and so in non-ionisable and will not give a yellow ppt of AgBr.
Pentamminesulphatocobalt(III) bromide is [Co(NH3)5(SO4)] Br while Pentamminebromidocobalt(III) sulphate is [Co(NH3)5Br] SO4.
In [Co(NH3)5(SO4)] Br, Br is ionisable and so it can react with AgNO3 to give AgBr which is the yellow ppt. while in , Br is inside the coordination sphere and so in non-ionisable and will not give a yellow ppt of AgBr.