Buffer pH Calculator

Created by Łucja Zaborowska, MD, PhD candidate and Anna Pawlik, PhD candidate
Reviewed by Bogna Szyk and Jack Bowater
Last updated: May 17, 2022
The pKa of a substance is a logarithmic scale that relates its dissocation constant to give acid in aqueous solution. Low (i.e. negative) numbers relate to strong acids. Together with the total substance concentration it allows an approximate pH to be calculated.
Łucja Zaborowska, MD, PhD candidate and Anna Pawlik, PhD candidate
Check out our list of popular buffers and their pK's in the article to your right 👉
Buffer type
Acid
Ka
pKa
Acid concentration
M
Salt concentration
M
pH
People also viewed…

Activation energy

The Arrhenius equation shows that a plot of 1/temperature against ln(reaction rate) is linear, with a gradient corresponding to the activation energy of a reaction. This activation energy calculator uses two points to determine activation energy (Ea).
Activation Energy Calculator

Nernst equation

This Nernst equation calculator uses the Nernst equation to determine either the actual reversible potential (E) or the standard reversible potential (E0) of the electrode couple.
Nernst Equation Calculator
main background