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    anyone know the correct molecular formulae for these two complexes/compounds??? any help greatly appreciated

    a) Rubidium bromobis(dimethylamido)trispyrid inecobaltate(II)

    b) Diamminebis(ethylenediamine)chro mium(III) hexacyanoferrate(II)
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    (Original post by Bella_99)
    anyone know the correct molecular formulae for these two complexes/compounds??? any help greatly appreciated

    a) Rubidium bromobis(dimethylamido)trispyrid inecobaltate(II)

    b) Diamminebis(ethylenediamine)chro mium(III) hexacyanoferrate(II)
    Take it one step at a time.

    Rubidium is a balancing ion and does not get involved.

    Cobaltate(II) means a cobalt(II) ion in the centre of a negative complex.

    Now place the ligands.

    'bis' means 'two of'
    'tris' means 'three of'

    can you take the first one from here?
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    (Original post by charco)
    Take it one step at a time.

    Rubidium is a balancing ion and does not get involved.

    Cobaltate(II) means a cobalt(II) ion in the centre of a negative complex.

    Now place the ligands.

    'bis' means 'two of'
    'tris' means 'three of'

    can you take the first one from here?
    thank you.
    I got Rb [Co(NC2H6)2(Py)3Br] for the first one?
    and then [Cr(NH3)2(en)2]4[Fe(CN)6]3
 
 
 
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