Skip to main content

All Questions

10 votes
4 answers
8k views

What is the real pKa of water?

What is the $\text{p}K_\text{a}$ of water? A simple google search yields the value $15.74$, but this site and this paper say it's $14.0$. According to my understanding, the correct answer should be $...
Advil Sell's user avatar
3 votes
1 answer
499 views

How was the dissociation constant of water determined?

I was studying about pH and pOH of different acids and bases and I read about the dissociation constant of water ($\ce{H2O}$). It turned out to be $1.00 \cdot 10^{-14}\ \mathrm{mol^2\cdot L^{-2}}$ ...
LM2357's user avatar
  • 333
1 vote
1 answer
2k views

How to change color of water based on its acidity?

I recently saw a video on YouTube in which water, when mixed with a solution (I believe iodine was involved,) changed color based on its acidity. I am attempting to replicate this experiment, but ...
Brandon Bradley's user avatar