PDA

View Full Version : Strong/Weak Acids and Bases


Prone17
Dec7-10, 05:18 PM
Can anyone explain to me how to determine whether a compound is a strong acid, weak acid, strong base, weak base, or amphoteric? Thanks!

espen180
Dec7-10, 05:31 PM
For acids, compare the original compound with the deprotonated compound. Look for stabilizing effects like resonance. For select families of organic molecules, conjugation may play a part.

The only stong bases I know of are readily soluble strong electrolytes which are salts of hydroxide ions.

symbolipoint
Dec7-10, 09:48 PM
What is this? :
The only stong bases I know of are readily soluble strong electrolytes which are salts of hydroxide ions.

Your other descriptive information is good, but what is a salt of hydroxide ion? A base is not a salt.

espen180
Dec8-10, 07:26 AM
For example, NaOH is a salt of a hydroxide ion. It goes into solution, dissolves into ions, and the hydroxide acts as the base.

Galap
Dec8-10, 10:53 AM
Look at the stability of the conjugate. The more stable the conjugate, the stronger the acid or base.

granpa
Dec8-10, 10:57 AM
http://www.science.uwaterloo.ca/~cchieh/cact/c123/baseacid.html