The pH of the solution with dissolved salts is to be predicted. Concept introduction: Salt is a strong electrolyte that dissociates completely when added to water. When a salt contains a cation that comes from a weak base then the cation recombines with water to produce a weak base and hydronium ions, and forms an acidic solution. When a salt contains an anion that comes from a weak acid then the anion recombines with water to produce a weak acid and hydroxide ions, and forms a basic solution. The anion, if it comes from a strong acid, does not recombine and is present in the solution as a free ion without having any effect on the pH of the solution. The cations that are highly charged and have a small size will form acidic solutions. The cations from group 1A and selective cations of group 2A, along with the ones from strong bases will form a neutral solution.
The pH of the solution with dissolved salts is to be predicted. Concept introduction: Salt is a strong electrolyte that dissociates completely when added to water. When a salt contains a cation that comes from a weak base then the cation recombines with water to produce a weak base and hydronium ions, and forms an acidic solution. When a salt contains an anion that comes from a weak acid then the anion recombines with water to produce a weak acid and hydroxide ions, and forms a basic solution. The anion, if it comes from a strong acid, does not recombine and is present in the solution as a free ion without having any effect on the pH of the solution. The cations that are highly charged and have a small size will form acidic solutions. The cations from group 1A and selective cations of group 2A, along with the ones from strong bases will form a neutral solution.
Solution Summary: The author explains that the pH of the solution with dissolved salts is to be predicted.
The pH of the solution with dissolved salts is to be predicted.
Concept introduction:
Salt is a strong electrolyte that dissociates completely when added to water.
When a salt contains a cation that comes from a weak base then the cation recombines with water to produce a weak base and hydronium ions, and forms an acidic solution.
When a salt contains an anion that comes from a weak acid then the anion recombines with water to produce a weak acid and hydroxide ions, and forms a basic solution.
The anion, if it comes from a strong acid, does not recombine and is present in the solution as a free ion without having any effect on the pH of the solution.
The cations that are highly charged and have a small size will form acidic solutions.
The cations from group 1A and selective cations of group 2A, along with the ones from strong bases will form a neutral solution.
The pH of an aqueous solution of pyridine (C5H5N) is 10.0 at room temperature. What is the initial molar concentration of C5H5N, if its base ionization constant is: Kb = 1.7×10–9?
If the KbKb of a weak base is 1.6×10−6,1.6×10−6, what is the pH of a 0.18 M0.18 M solution of this base?
The pH of an aqueous solution of acetic acid (CH3COOH) is 2.0. What is the initial molar concentration of CH3COOH, if its acid ionization constant is Ka = 1.8×10–5?
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