+37091 Basically just another form of parentheses.
SOmetimes helps keep things clear to not have so many parentheses....
[ x (5^(2/3) )] is the same thing as having parentheses on the outside....
+37091 It also SOMEtimes denotes concentration , such as when you are caculating pH
pH = - log [H30+] ph is the negative log of the hydronium ion concentration....
what does a square bracket mean
