Chemical Forums
Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: skibum143 on October 25, 2010, 01:33:57 PM
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Give systematic names for the following formulas. (Type your answer using the format copper(II) chloride for CuCl2.)
(a) [Cr(CO)5Cl]Br2
pentacarbonyl chloro cromium(III) bromide
(b) [Co(NH3)4(NO2)2]Cl
tetraammine binitrite cobalt(III) chloro
(c) Ba5[AuI6]2
pentabarium hexaiodo gold(I)
What are the formulas for each of the following coordination compounds? (Type your answer using the format [Co(NH3)6]Cl3 for [Co(NH3)6]Cl3. If necessary, use the abbreviation en for ethylenediamine. You can click on the eye icon to see your formatted answer.)
(a) tris(ethylenediamine)chromium(III) perchlorate
[Cr(en)3]^+2Clo4^-
(b) strontium hexachloroferrate(III)
Sr[Fe(Cl)6]^-
Not sure what I'm doing wrong on these, thanks for the help.
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(a) tris(ethylenediamine)chromium(III) perchlorate
en = neutral ligand. So, think about how you'd balance the complex ion's charge of +3 with perchlorate (the counterion) charge.
(b) strontium hexachloroferrate(III)
is it true that you've written your answer as having an overal -1 charge? Realizing that the chloro ligands are each -1, think about how to balance the Sr +2 charge with the resulting overall charge when combining Fe+3 with it's 6 chloro ligands