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The formation constant (Kf) of the salicylic acid-Fe³⁺ complex varies depending on the specific conditions, such as pH and temperature. Generally, the formation constant is quite high, indicating a strong interaction between salicylic acid and Fe³⁺ ions. Typical values for the formation constant can range from 10² to 10⁴, signifying that the complex is favored in solution. For precise values, it is best to refer to specific literature or experimental data.
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Precipitate of salicylic acid dissolves after addition of excess sulphuric acid?
The precipitate of salicylic acid dissolves in excess sulphuric acid due to the formation of a complex between salicylic acid and sulphuric acid, which increases the solubility of the precipitate. This reaction results in the formation of a colorless solution, as the salicylic acid is converted into its conjugate base form.
What is the color of the salicylic acid-Fe3 complex?
When this salicylate dianion is mixed with an acidic solution of FeCl3(aq), iron(III) chloride, a highly colored (VIOLET) iron (III)-salicylate complex is produced. The maximum absorption of the complex is at about 535 nm.
What is the rationale for the color reaction between salicylic acid and ferric chloride?
The color reaction between salicylic acid and ferric chloride is based on the formation of a complex between salicylic acid and ferric ion. The complex absorbs light in the visible range, resulting in a color change from pale yellow to purple or blue depending on the concentration of salicylic acid. This reaction is commonly used in analytical chemistry for qualitative detection of phenols.
Why does ferric nitrate gives yellow color when react with salicylic acid?
Ferric nitrate gives a yellow color when reacting with salicylic acid due to the formation of a complex between the iron ions (Fe³⁺) and the hydroxyl groups of salicylic acid. This complexation results in a charge transfer that produces a yellow-colored species. The intense color is indicative of the presence of the iron-salicylate complex, which is a characteristic behavior of phenolic compounds interacting with transition metal ions.
What is the formation constant for dithiosulfato argentate?
The formation constant for dithiosulfato argentate, [Ag(S2O3)2]3-, is approximately 1.04 x 10^21. This complex is formed between silver ions and dithiosulfate ligands, resulting in a stable coordination compound.
What about the complex formation ability of lanthanides as campared to actinides?
describe the complex formation by lanthanides?
What is the relationship between the equilibrium constant (K), the solubility product constant (Ksp), and the formation constant (Kf) in chemical reactions?
The equilibrium constant (K) relates to the overall balance of reactants and products in a chemical reaction. The solubility product constant (Ksp) specifically applies to the equilibrium of a sparingly soluble salt dissolving in water. The formation constant (Kf) is related to the stability of a complex ion forming in a solution. These constants are all measures of the equilibrium state of a reaction, but they each have specific applications and implications in different types of chemical reactions.
What does K subscript f mean?
K subscript f, often referred to as the formation constant or stability constant, is a quantitative measure of the stability of a complex in solution. It indicates the strength of the interaction between a metal ion and a ligand, representing the equilibrium between the free metal ions and the formed complex. A higher Kf value signifies a more stable complex. This parameter is crucial in fields such as coordination chemistry and biochemistry.
What is primarily responsible for the formation of the cells lysosomes?
Golgi complex
Salicyclic acid gives a positive test with FeCl3?
This is a commonly used test to detect the presence of phenolic hydroxyl groups in organic compounds. The reaction between salicylic acid and FeCl3 forms a complex with a purple color, indicating the presence of phenolic groups in the compound.
What is a computer language constant?
A constant is a primitive or complex object that does not vary. That is, once instantiated, its immutable members cannot be changed.
What is the formation of a complex molecule by removal of water?
The formation of a complex molecule by removing water is called dehydration synthesis. In this process, a molecule of water is removed as two smaller molecules join together to form a larger, more complex molecule.
