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.
Don't used hand raiting and don't used Ai solution
13.84. Chlorine atoms react with methane, forming HCI
and CH3. The rate constant for the reaction is
6.0 × 107 M¹ s¹ at 298 K. When the experiment
was run at three other temperatures, the following data
were collected:
T (K)
k (M-1 s-1)
303
6.5 × 107
308
7.0 × 107
313
7.5 x 107
a. Calculate the values of the activation energy and the
frequency factor for the reaction.
b. What is the value of the rate constant in the lower
stratosphere, where T = 218 K?
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