How do i get the Ka of weak base indicators such as bromophenol blue, methly red, bromothymol blue, and phenolophalein? I found the pKa values online but i couldn't find thier Ka values.
how do you know is an acid or base is strong? I know that strong acids and bases completely dissociates, but how would i know if it completely dissociates?
For weak acids you can find the pH by taking the negative log of the square root of Ka times the initial concentration of the acid.
But if its a strong acid, you only have to take the negative log of the initial concentration. i.e. 6 M HCl, the pH is -log(6.0). What is the pH of 3 M HNO3?
I found these in wikipedia. I'm guessing that these are the only one's i'm gonna have to remember.
Potassium hydroxide (KOH)
Caesium hydroxide (CsOH)
Sodium hydroxide (NaOH)
Lithium hydroxide (LiOH)
Rubidium hydroxide (RbOH)
Strontium hydroxide (Sr(OH)2)
Calcium hydroxide (Ca(OH)2)
Barium hydroxide (Ba(OH)2)
Hydroiodic acid HI
Hydrobromic acid HBr
Hydrochloric acid HCl
Perchloric acid HClO4
Sulfuric acid H2SO4 (Ka1/first dissociation only)
Nitric acid HNO3
Hydronium ion H3O+ or H+
So other than these compounds, almost all the rest are all weak acids or bases right?
also the pH of 3 M of HNO3 is -0.48 right? and the pOH is 14.48? i only need the approximations.