1 Page
Unlock Document

CHEM 111
Beatrice Botch

Chem 111/121 1/18/12 Nomenclature Worksheet 4 : Naming of Salts with Oxoanions 'Oxo' anions are negatively charged ions containing oxygen plus another element such as nitrogen or sulfur. For example: NO 3– = Nitrate SO 42–= Sulfate. You can recognize an oxoanion because it always has the suffix 'ate' or 'ite'. Think of an oxoanion as a group. Never break it up further into elements. Note that in the formulas above oxygen is written last. Note also that the number of oxygens and the charge of one i varies depending upon the element it is bonded to. There is no way to use the periodic table to determine how many oxygens are attached. This is a case where you need to memorize the formulas and charges. Learn (memorize) the names and formulas for the 'ate' anions. These are th– 'ate' anions you should learn: Nitrate NO 3 Acetate CH 3OO or CH CO 3 2 – Chlorate ClO – -1 ions Perchlorate ClO 4 Permanganate MnO 4– Carbonate CO 2– 32– Sulfate SO 4 2– -2 ions Chromate CrO 4 Dichromate Cr2O 7– 3– Phosphate PO 4 -3 ion Name "ate" compounds by naming the cation then the anion. When writing a formula containing a polyatomic ion, use parentheses around the ion if more than
More Less

Related notes for CHEM 111

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.