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The corresponding equilibrium constant for water, K w is 10 −14, a factor of 10 10 (10 billion) smaller. In spite of the viscosity of the acid, the effective conductivities of the H 3 SO + 4 and HSO − 4 ions are high due to an intramolecular proton-switch mechanism (analogous to the Grotthuss mechanism in water), making sulfuric acid a good ...
The valence is the combining capacity of an atom of a given element, determined by the number of hydrogen atoms that it combines with. In methane, carbon has a valence of 4; in ammonia, nitrogen has a valence of 3; in water, oxygen has a valence of 2; and in hydrogen chloride, chlorine has a valence of 1.
The equivalent weight of an element is the mass of a mole of the element divided by the element's valence. That is, in grams, the atomic weight of the element divided by the usual valence. [2] For example, the equivalent weight of oxygen is 16.0/2 = 8.0 grams.
Sulfurous acid is commonly known to not exist in its free state, and due to this, it is stated in textbooks that it cannot be isolated in the water-free form. [4] However, the molecule has been detected in the gas phase in 1988 by the dissociative ionization of diethyl sulfite. [5]
The sulfate or sulphate ion is a polyatomic anion with the empirical formula SO 2− 4.Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life.
Valency factor: two elements should have the same valence. The greater the difference in valence between solute and solvent atoms, the lower the solubility. Solid solution rules for multicomponent systems
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Second rule: the electrostatic valence rule [ edit ] For a given cation, Pauling defined [ 2 ] the electrostatic bond strength to each coordinated anion as s = z ν {\displaystyle s={\frac {z}{\nu }}} , where z is the cation charge and ν is the cation coordination number.