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Aqueous solution of copper sulphate is a homogeneous mixture?
Yes, an aqueous solution of copper sulfate is a homogeneous mixture because it consists of a single phase where the copper sulfate is uniformly dissolved in water, resulting in a uniform composition throughout the solution.
Is mouthwash a compound element homogeneous mixture or heterogeneous mixture?
Mouthwash is typically a homogeneous mixture. This means that the components are evenly distributed throughout the solution and the mixture has a uniform composition.
Sodium bisulfite freezing point?
Sodium bisulfite does not have a fixed freezing point as it is a mixture of sodium metabisulfite and sodium sulfite. The freezing point can vary depending on the composition of the solution. Generally, a solution of sodium bisulfite will freeze at a lower temperature than water due to its composition.
Can a solution be heterogeneous?
It can be heterogeneous if the two substances in the mixture don't mix together, such as sand and water. No: solutions must be homogeneous. If a mixture is heterogeneous, it is not a solution.
What is the pH of andesite?
Andesite does not have pH. pH is a measure of how acidic or basic an aqueous solution is, meaning a solution in which the solvent is water. Andesite is a rock, not an aqueous solution. The terms "acidic" and "basic" were once used by scientists to describe the composition of igneous rocks, but this was based on an incorrect interpretation of their chemistry. These terms were replaced with felsic and mafic respectively. In either case, andesite is considered intermediate.
Why the oxidation of formic acid gives red precipitate while the oxidation of acetic acid not?
I think you are referring to the test using Fehlings solution. Fehlings solution oxidises aldehydes and ketones and formic acid and is in turn reduced. The red precipitate is the copper(I) oxide formed by reduction of the copper(II) complex found in Fehlings solution. Acetic acid is not readily oxidised and so there is no precipitate. See link for more information on what the complex is in Fehlings solution and how it is prepared.
What is the original colour of fehlings a solution?
Fehling's A solution is blue in color due to the presence of copper sulfate.
What is the original colour of fehlings solution?
Fehling's solution is originally blue in color due to the presence of copper ions.
What chemical formula for Fehlings reagent?
The Fehling A solution contain copper sulfate.The Fehling B solution contain sodium potassium tartrate and sodium hydroxide.
What is the color of the fehlings solution?
Fehling's solution is typically blue in color due to the presence of copper ions. When Fehling's solution is mixed with reducing sugars, such as glucose, it turns from blue to brick-red or yellow-brown due to the formation of a copper oxide precipitate.
What is the fehlings test of glucose?
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Is an aqueous solution a system having a uniform composition and appearance?
Yes, an aqueous solution is a system having a uniform composition and appearance. If the solution is saturated, only the solution above the solid material will be uniform.
Can the term solution be used to identify a mixture that has the same composition throughout?
The term solution can be used to identify a mixture that has the same composition throughout.
Why does the fehlings solution turn red?
The Fehling's solution turns red when it comes into contact with reducing sugars such as glucose. This color change occurs because the reducing sugars react with the copper ions in the Fehling's solution to form a red precipitate of copper(I) oxide. This is a characteristic test used to detect the presence of reducing sugars in a solution.
What is the product obtained by combining fehlings a and fehlings b solution?
When the two Fehling Solutions A and B are mixed, a deep blue solution containing a complex cupric ion is formed. On interaction with reducing compounds such as aldehydes or sugars, the copper is reduced to the univalent stage, and a red, yellow, or yellowish green precipitate is formed.
Why is it important that fehlings solution be freshly prepared?
Fehling's solution contains copper sulfate and potassium tartrate which can oxidize and degrade over time, leading to inaccurate results. Freshly prepared Fehling's solution ensures the reagents are at their optimal concentrations for reliable testing of reducing sugars.
What is fehlings solution?
Fehling solution "A" is copper sulphate solution and Fehling solution "B" is a solution of sodium potassium tartrate and NaOH.
