pOH Measurement
A measurement of the hydroxide ion concentration, similar to pH, is called pOH. The pOH of a solution is defined as the negative logarithm of…
Chemistry
Solutions of pH
Although one can quantitatively describe the acidity of a solution by its concentration [H+], it is more convenient to determine the acidity in terms of…
Acidic Basic
In an acidic solution, the concentration of H+ (aq) is greater than that of OH+ (aq). After dissolving substances in water, one can alter the concentrations…
Solutions of Strong Acid or Base
We know that in a solution of a strong acid one can normally ignore the self-ionisation of water as a source of a few extra…
Ionic Product Constant of Water
H2O and Kc are both constant and combining these constants together make up the ionic product constant for water, written KW. KW = [H3O+] [OH-]…
Self-ionisation of Water
For a strong acid, the concentration of the ions will equal the concentration of the acid. e.g. 0.1 M HC1 (aq), [H+] = 0.1 M…
Molecular Structure in Electro-Chemistry
Molecular Structure in Electro-Chemistry two factors are important in determining the relative add strengths. One factor is the polarity of the bond to which the…
Relative Strength of Acids and Bases
The Bronsted-Lowry theory considers the proton-transfer reactions between conjugate add-base pairs. Such add-base reactions can be seen as a competition between species for hydrogen ions.…
Lewis Theory of Acids and Bases
The Lewis theory defines an acid as an electron pair acceptor and a base as an electron pair donor. This theory broadened the scope of…
Amphoteric Nature of Water
Water is amphoteric meaning that it can act as both an acid and a base. The water molecule has hydrogen atoms and, for that reason,…
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