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How do oxalic acid and sulfuric acid differ during titration?
Sulfuric acid has hydrophilic properties when concentrated, so it may have some effect on the reaction taking place. Oxalic acid is an reducing agent, so in titrations - which usually involve some kind of redox - it may begin reacting in ways not intended.
Why do you add sulfuric acid to an oxalic solution?
Oxalic acid is an organic covalent compound not very much soluble in water during its titration with an oxidizing agent as KMnO4 its decomposition is required into CO and CO2 along with removal of water, sulphuric acid makes this process possible.
Why you heat oxalic acid and sulphuric acid solution?
Heating oxalic acid and sulfuric acid solution can help in the formation of carbon monoxide and carbon dioxide gases. This process is often used in the laboratory to generate these gases for various chemical reactions or analytical purposes.
Why you use dilute H2SO4 in titration permanganat and oxalic acid?
Dilute sulfuric acid is used in the titration of potassium permanganate with oxalic acid because it helps to maintain a stable pH and prevents the oxidation of oxalic acid by permanganate ions. This ensures accurate results by minimizing side reactions and interference.
Why oxalic acid is heated before titration with KMnO4?
Heating oxalic acid before titration with KMnO4 helps to remove any water of crystallization, making the compound anhydrous. This ensures accurate measurement of the substance being titrated and helps to prevent interference from water during the titration process. Additionally, heating can help to dissolve the oxalic acid more effectively, ensuring a more efficient reaction during titration.
How do oxalic acid and sulfuric acid differ during titration?
Sulfuric acid has hydrophilic properties when concentrated, so it may have some effect on the reaction taking place. Oxalic acid is an reducing agent, so in titrations - which usually involve some kind of redox - it may begin reacting in ways not intended.
Why do you add sulfuric acid to an oxalic solution?
Oxalic acid is an organic covalent compound not very much soluble in water during its titration with an oxidizing agent as KMnO4 its decomposition is required into CO and CO2 along with removal of water, sulphuric acid makes this process possible.
Why 2N sulphuric acid is used in oxalic acid estimation?
This titration is based on the neutralization reaction between oxalic acid and sulfuric acid; a pH indicator is used.
Why you heat oxalic acid and sulphuric acid solution?
Heating oxalic acid and sulfuric acid solution can help in the formation of carbon monoxide and carbon dioxide gases. This process is often used in the laboratory to generate these gases for various chemical reactions or analytical purposes.
Why you use dilute H2SO4 in titration permanganat and oxalic acid?
Dilute sulfuric acid is used in the titration of potassium permanganate with oxalic acid because it helps to maintain a stable pH and prevents the oxidation of oxalic acid by permanganate ions. This ensures accurate results by minimizing side reactions and interference.
Why do you have to heat up the solution of oxalic acid after adding sulphuric acid for the titration with permanganate?
To act as a catalyst
Why oxalic acid is heated before titration with KMnO4?
Heating oxalic acid before titration with KMnO4 helps to remove any water of crystallization, making the compound anhydrous. This ensures accurate measurement of the substance being titrated and helps to prevent interference from water during the titration process. Additionally, heating can help to dissolve the oxalic acid more effectively, ensuring a more efficient reaction during titration.
Which is stronger sulphuric acid or oxalic acid?
Sulfuric acid is stronger than oxalic acid. Sulfuric acid is a strong mineral acid with a very low pH level, while oxalic acid is a weaker organic acid commonly found in vegetables like spinach and rhubarb.
Why would you add sulfuric acid to a mixture of oxalic acid and sodium oxalate?
This is an example of a buffer solution. if the sulfuric acid were added to a plain glass of water, it would have a massive change in pH. However, the buffer action of the oxalate-oxalic acid solution will decrease this change to something very minor (demonstrably to only hundredths or thousands, if the solution is made well, of the change it would have on pure water).
Why is brown turbidity found in titrating KMnO4 solution with oxalic acid?
Brown turbidity in a titration of KMnO4 with oxalic acid typically arises from the formation of manganese(II) ions during the reaction. When KMnO4, which is purple, is reduced by oxalic acid, it produces manganese(II) ions, which can form a brown precipitate of manganese(IV) oxide (MnO2) in certain conditions. This turbidity indicates the presence of manganese species that are not fully soluble, often due to incomplete reduction or changes in pH during the titration.
Can oxalic acid be titrated by HCl?
Yes, oxalic acid can be titrated by HCl because oxalic acid is a diprotic acid and can react with HCl in a simple acid-base reaction. The titration involves determining the volume of acid required to neutralize the oxalic acid solution, which can be used to calculate the concentration of oxalic acid.
How do you determine the pka of oxalic acid?
To determine the pKa of oxalic acid, you can perform a titration experiment. By titrating a solution of oxalic acid with a strong base such as sodium hydroxide (NaOH) and monitoring the pH changes, you can identify the point where the acid is half-neutralized and calculate the pKa value. This is typically done using a pH meter or pH indicator to track the changes in acidity as the titration progresses.
