Naming – ous vs ic

While naming ionic compounds using IUPAC involving multivalent metal ions the oxidation state or valency of the element is shown in brackets after the name of the metal using roman numerals. Example Iron (II) Sulfate = Fe2SO4, if you name the same compound using trivial naming system or the older naming system the compound is called Ferrous Sulfate.
Multivalent ions when named using the trivial system the metal with lower oxidation system always ends in -ous and the next higher oxidation number will end in -ic.
So Iron (III) Sulfate or Fe2(SO4)3 will be called Ferric Sulfate.
Cu+ = Cuprous ion
Cu2+ = Cupric ionĀ  and so on

 

vinstan1

 

 

iPad and iPhones

  • How you can use content on this website for you smart phones or ereaders.
  • The documents that can be downloaded are either in the pdf or ePub format.
  • Contents on the different pages can be downloaded into your iPhones and iPads.
  • If you are using an iPhone when you save your documents you may be allowed to choose the default program to open, choosing iBooks is a good option to view your pdf files and ePub formats. If you have documents to go you may open the pdf files in it too.
  • Alternatively you may install Calibre and download the pdf files and ePub files using Calibre and then sync with you ereader, iPad or iPhone.