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Feb 21, 2021 · Learn about ionic equilibrium, degree of ionization, common ion effect, buffer solution and more. Find definitions, examples, numerical problems and concepts of acids and bases.
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- Introduction to Ionic Equilibrium
- Ostwald’s Dilution Law: Degree of Dissociation
- Ionic Equilibrium Formulas
- Degree of Ionization
- Common Ion Effect on Degree of Dissociation
Reactants and products coexist in equilibrium so that reactant conversion to product is always less than 100%. Equilibrium reactions may involve the decomposition of a covalent (non-polar) reactant or the ionization of ionic compounds into their ions in polar solvents. In this section, we will learn about the ionic equilibrium in ionic solutions. S...
Ostwald’s dilution law is the application of the law of mass action to weak electrolytes in solution. A binary electrolyte AB dissociates into A+ and B–ions. AB ⇌ A+ + B– (i) For very weak electrolytes, since α <<< 1, (1 – α) = 1 ∴ (ii) Concentration of any ion = Cα = √CK = √K/V The degree of ionization increases on dilution. Thus, the degree of di...
It becomes necessary to know what fraction of the initial amount of the reactants is converted into products at equilibrium. The fraction of the initial molecules that are converted at equilibrium is called the degree of dissociation/ionization. Degree of dissociation or ionization= α = (Number of reactant molecules dissociated\ionized at the start...
The degree of ionization depends on the following: 1. Nature of the electrolyte:Strong, weak, insoluble 2. Nature of the solvent:High dielectric solvents increase ionization 3. Dilution:Larger the dilution higher the ionization 4. Temperature: Higher the temperature, the larger the ionization 5. The presence of common ions decreases the ionization ...
Weak electrolytes are poorly ionized in an aqueous solution. Their ionization may further be reduced if one of the ions is present from another source. This is called a common ion effect. i)Ammonium hydroxide is a weak base. When adding ammonium chloride (a salt), ammonium ions from it will make the ammonium ions combine with the hydroxide to form ...
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define and explain common ion effect in ionisation of weak acids and bases; define buffer solutions; apply Henderson equation to calculate the pH of acidic and basic buffers; explain hydrolysis of salts with the help of chemical equations; express solubility equilibrium with the help of an equation;
Oct 9, 2022 · Ionic Equilibrium. The discharging of ions are always in equivalent amount, it is independent of their their relative speeds during electrolysis.
