Question

What is the name of the compound CoCO3 · 5H2O?

Answer 1

\(\sf Co\) = Cobalt
\(\sf CO_3\) = Carbon trioxide
\(\sf 5H_2O\) = Hexahydrate

Cobalt has a charge of +2 so the carbon trioxide has a charge of -2, which is called a carbonate ion (\(\sf CO_3^{2-}\))


So together that's \(\sf\large\underline{ Cobalt(II)~Carbonate~Hexahydrate}\)
(II) because cobalt is 2+

Answer 2

@thomaster , a minute but important mistake there :

\(\large {\mathsf{Co } \rightarrow \text{Cobalt} \\
\mathsf{CO_3} \rightarrow \text{Carbon trioxide } \\
\mathsf{5H_2O} \rightarrow \boxed{\color{blue}{\textbf{Penta}} \text{hydrate}}} \)

So together it is : \(\LARGE\color{orange}{\mathsf{Cobalt}{\mathsf{(II)} } \space \mathsf{Carbonate}} \space \boxed{\color{blue}{\mathsf{Penta}}} \color{orange}{\mathsf{hydrate}} \) .

Answer 3

I suggest to use addition nomenclature instead so the name become cobalt(II) carbonate - water (1/5)

Answer 4

IUPAC, nomenclature of inorganic chemistry

Answer 5

Never thought so. Thanks for updating us. Frost, good work and sorry for the mistake.

Answer 6

I think both are right , though!

Answer 7

LOL can't believe i made that mistake. @Thoughts tnx for pointing out :P
But i think cobaltcarbonate normally has an hexahydrate instead of penta