PDF library

Note: Discussions about the pdf documents are found in the 'Help & Discussions' section.

Inorganic chemistry subjects:


Equilibriums 1 : A tutorial about how [CO2], [HCO3-] and[CO32-] are calculated from Total Inorganic Carbon.
The pdf is here


Ionic Strength 1 : An introduction about Ionic Strength with a simple calculation using H+ as an example.
The pdf is here


pKa and Ka : An introduction to the concept of Ka and pKa values -their definition, how they are used and a simple example.
The pdf is here


NaHCO3 dissolved : An introduction to what happens to pH when NaHCO3 dissolves.This site included excel spreadsheets showing the calculations.
The pdf is here


Buffers : A short introduction to buffers.
The pdf is here

Answers to questions in the Help & Discussion section or blog:


A question about adding the effect on pH by adding hydrochloride acid (HCl) to an acetate buffer isanswered here.


pdf's pending


An explanation on how the concentration of sulfuric acid (H2SO4), HSO4- and sulfate (SO42-) is calculatedis found here.


Chemistry resources:

If you have some chemistry notes you would like to share I will be happy to post them here.

PDF library

pKa and Ka

pKa and Ka Background informationThe Ka value is a value used to describe the tendency of compounds or ions to dissociate. The Ka value is also called the dissociationconstant, the ionisation constant, and the acid constant.Topic: Equilibriums The pH scale The ...

Buffers

Buffers BackgroundAs shortly explained in the section about how to calculate pH in a solution of dissolved NaHCO3 abuffer has the capability of keeping pH within a certain and narrow range even if an excessof hydrogen ions H+ or hydroxide ions OH- are added.In this particular page I will elaborate a bit on why buffers actually have the capabilities ...

Question about acetate buffer

Question about acetate buffer This is the long and computational answer to Debra's question about what happens when 100 mmol of HCl ispoured into an 100 ml acetate buffer (0.2 M) 06.07.2019 Author: Jim ...

NaHCO3 dissolved in water - how is pH calculated?

NaHCO3 dissolved in water - how is pH calculated? Background about buffersA buffer is a solution that has the ability to keep pH within a certain and narrow range: even if an excessof hydrogen ions (H+) is applied to the solution. In other words:buffers resist changes in pH whenreasonable amount of either H+ or OH- is added to the buffer solution.Th...