1. Naming Oxyacids

2. Oxyacids are acids made up of hydrogen, oxygen and one other element and produce H+ ions when dissolved in water.
Many of the common polyatomic ions become oxyacids by adding hydrogen.
The suffix “-ate” becomes “-ic” and the word acid is added to the end.

3. I “ate” liver and I said “ic”!
Remember….
I “ate” liver and I said “ic”!

4. Examples: NO3- nitrate HNO3(aq) nitric acid CO32- carbonate H2CO3(aq)
carbonic acid
SO42-
sulfate
H2SO4(aq)
sulfuric acid
PO43-
phosphate
H3PO4(aq)
phosphoric acid
ClO3-
chlorate
HClO3(aq)
chloric acid
C2H3O2-
acetate
HC2H3O2(aq)
acetic acid

5. Oxyacids – form different acids by changing the number of oxygens
HClO4
perchloric acid
one extra oxygen
HClO3
chloric acid
normal formula
HClO2
chlorous acid
one less oxygen
HClO
hypochlorous acid
two less oxygen

6. Examples What is HNO3? What is HNO2? What is HNO4? What is HNO?
nitric acid
What is HNO2?
nitrous acid
What is HNO4?
pernitric acid
What is HNO?
hyponitrous acid

7. Extra Recall that “-ate” ions become “-ic” acids.
Likewise, “-ous” acids become “-ite” ions
HClO2 is chlorous acid; ClO2- is the chlorite ion.
HClO is hypochlorous acid; ClO- is hypochlorite ion.

8. Examples What is HNO3? What is NaNO3? What is HNO2? What is NaNO2?
nitric acid
What is NaNO3?
sodium nitrate
What is HNO2?
nitrous acid
What is NaNO2?
sodium nitrite