Ch. 17 Problem 29a [ENDORSED]

[Maria1E]

In 29a, why is the answer hexacyanoferrate (II) ion instead of hexacyanidoferrate (II) ion? I thought that since cyanide had an -ide ending it would be converted to -ido.

Thank you!

[Chem_Mod]

The older naming convention would use "cyano" and the newest IUPAC naming rules use "cyanido." In this case the text has opted to provide a solution in the old naming convention. You should be familiar with both and both will be acceptable on any exams.

[Kayla Ikemiya 1E]

Why do you change iron to ferrate?

[Jonathan Tangonan 1E]

It changes to ferrate because the "ate" indicates that the overall charge of the complex is negative. Fe originally comes from the latin ferrum and that's where the ate is added onto.

[Sophia Kim 1C]

the suffix -ate indicates that the compound has a negative charge and ferr is from iron so ferrate shows that the iron compound is negative