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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
reaction of bisulphite with acid chlorides
The correct electronic configuration of Ti(Z= 22) atom is: (1) 1s 2 , 2s 2 , 2p 6 , 3p 6 , 4s 2 , 3d 2 , (2) 1s 2, 2s 2 , 2p 6 , 3p 6 , , 3d 4 , (3) 1s 2 , 2s
prepartion
equivalent mass as an assignment
Resonance for the methyl group at room temperature The resonance for the methyl group at room temperature is a singlet. When the temperature is lowered, the resonance of this m
We have seen that different metal/metal ion combinations have different values of electrode potentials. The various elements can be arranged in order of increasing or decreasing va
Word root - IUPAC System of Naming Organic Compounds The word root represents the number of carbon atoms that are present in the chain. Table : Chain le
it is impossibe to synthesise orgnic compounds in the lab since life force is essential for their formation -theory is known as
Q. Why we use Boron? Boron is used to increase the hardness of steels. Crystalline boron is used in transistors. Boron is a good neutron absorber and is used as shields and con
sir plz tell me about fiehes test procedure for honey in detail...
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