Hi! I can't seem to figure out the pH and pOH of the following 2 solutions containing a strong acid or a strong base...
a) 0.100 M HBr
b) 1.45 M NaOH
Any help would be appreciated!
Sat, 2007-05-12 19:39
HBr is a strong acid. That means it dissociates (breaks apart) in water 100%. So as soon as you put HBr in water it becomes H+ and Br-
The H+ is usually associated with a water molecule and known as H3O+ but you can use either.
1 mole of HBr breaks apart in to 1 mole of H+ and 1 mole of Br-
the same holds true for the molarity..
then you use pH = - log of [H+]
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