Naming Acids

Last class we learnt about Acids and their formulas. You may not know how to determine an acid if you just saw their formula, but that's what these notes are for. Once you're done reading these notes, (hopefully) you'll be an expert at naming acids and writing their formulas. If not, just ask Ms. Chen for help :p

First of all, we need to know how an acid is formed.

Acids

An ACID is formed when a compound composed of HYDROGEN ions and a negatively charged ion are dissolved in water. (Aqueous -aq-)

- Ions separate when dissolved in water

- H ion joins with H2O (water) to form H3O (Hydronium Ion)

Ex. H + Cl --> HCl(g)

      HCl(g) + H2O(l) --> H3O(aq) + Cl(aq)

Naming Acids Guidelines (Simple Acids)

1. Use "hydro" as the beginning

2. Last syllable of the non metal is dropped and replaced with "-ic."

3. Add "acid" at the end.

* ____ide -> hydro____ic acid

Example. Name the SimpleAcids:

1. HF(aq) - Hydrofluoric acid

2. HCl(aq) - Hydrochloric acid

3. Hbr(aq) - Hydrobromic acid

4. HI(aq) - Hydroiodic acid

Naming Complex Acids

1. -ate replace with -ic

    -ite replace with -ous

2. "Acid"at the end of the name.

Example. Name the Complex acids

1. HCH3COO(aq) - Acetic Acid

2. HClO3(aq) - Chloric Acid

3. HNO2(aq) - Nitrous Acid

4. HClO4(aq) - Perchloric Acid

Here's a website for you to practice what you've learned. 

http://faculty.msugf.edu/wenz/CHMY%20121/Handouts/Naming%20Acids%20Practice.pdf

Have fun :)