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9C.1 7th Ed. Homework question naming

Posted: Sat Dec 01, 2018 4:10 pm
by JulieAljamal1E
On part c) given [Co(CN)5(OH2))]2- the name is aquapentacyanocobaltate(iii) ion. Why is it cobaltate and not just cobalt, while on the next part d) we have [Co(NH3)5(SO4)]+ the name is pentaamminesulfatocobalt(iii) ion. here we have Co written as cobalt not cobaltate. How do you know which one to use?

Re: 9C.1 7th Ed. Homework question naming

Posted: Sat Dec 01, 2018 5:44 pm
by Nawaphan Watanasirisuk 3B
-ate is added to the end of the metal name if the complex has an overall negative charge but not when the the complex has an overall positive charge or if the complex is neutral.