Coordination Chemistry: how many ions formed when dissolved

[bluepen]

Hey,

[Co(NH₃)₄Cl₂]Cl

I don't understand how there isn't just one mole of Cl^- ions formed when you dissolve one mole of the compound in water. The answer is '2 moles', but I don't see how :(

Another example is
[Co(NH₃)₄]Cl₃
How many moles of ions are formed when 1 mole of this compound dissolves in water?
How is not just 3? The answer says it's 4 moles...

The questions are from this website, which I found quite helpful to quickly revise the topic.
http://www.chem.purdue.edu/gchelp/116exams/index.html

Thanks!

 

[espen180]

It seems you misunderstood the question. The problems ask for the total number of moles of ions, not the number of moles of chloride ions.

 

[bluepen]

I knew it had to be that obvious! Thanks a million espen180