9C.1 7th Ed. Homework question naming

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JulieAljamal1E
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Joined: Fri Sep 28, 2018 12:24 am

9C.1 7th Ed. Homework question naming

Postby JulieAljamal1E » Sat Dec 01, 2018 4:10 pm

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?

Nawaphan Watanasirisuk 3B
Posts: 58
Joined: Tue Nov 28, 2017 3:03 am

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

Postby Nawaphan Watanasirisuk 3B » Sat Dec 01, 2018 5:44 pm

-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.


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