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Being simultaneously basic and acidic, water undergoes autoprotolysis, also called self-ionization:
The equilibrium constant is
H3O+ in these equations is general simply written H+. In pure water and in solutions that do not give any additional source of H+ or OH- both ions have molar concentrations exact to 10-7. Addition of an acid decreases [OH-] and hence increases [H3O+]; addition of a base has the reverse effect.
The pH scale is defined by
Neutral water has a pH of 7, acidic solutions have lower values of ph (typically 0-7), and basic solutions or alkaline higher values (7-14). In alkaline or basic solutions [OH-] is thus greater than [H+].
Strong and weak behavior
The equilibrium constant of the protolysis reaction
is known as the acid dissociation constant (Ka) of HA or the acidity constant:
It is often expressed as a pKa value, described as
Classification based upon molecular forces: Depending on the intermolecular forces, the polymers have been categorized into four types. (a) Elastomers (b) Fi
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procedure and curves for radiometric titration
explain vsepr thheory
Assignment
need help with calculating gases
Miller indices of the diagonal plane of a cube are (110)
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Lipids Lipids are constituents of plants and tissues that are insoluble in water although soluble in organic solvents like ether, carbon tetrachloride, chloroform, or benzene.
Chain transfer agents In Vinylic polymerisation several other molecules react along with main growing chain to interrupt the additional growth of the original chain. This takes
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