Cobalt-cobaltate

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Sophie Krylova 2J
Posts: 59
Joined: Fri Sep 29, 2017 7:06 am

Cobalt-cobaltate

Postby Sophie Krylova 2J » Thu Nov 30, 2017 9:26 am

Why in some HW problems the cation is simply "cobalt" but in others "cobaltate?"

deeksha1I
Posts: 21
Joined: Fri Sep 29, 2017 7:04 am

Re: Cobalt-cobaltate

Postby deeksha1I » Thu Nov 30, 2017 9:45 am

If the overall complex has a negative charge, then -ate is added to the stem of the metal's name.

For example)
[Ni(CN)4]2- would be tetracyanidonickelate(II) ion

Hope this helps!

Meredith Steinberg 2E
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Re: Cobalt-cobaltate

Postby Meredith Steinberg 2E » Thu Nov 30, 2017 10:58 am

-ate is added when the overall complex has a negative charge. Remember for iron instead of it becoming ironate it becomes ferrate.


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