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Why was the copper II oxide added in excess to dilute sulfuric acid to form the soluble salt copper II sulphate?
Copper II oxide was added in excess to ensure that all the sulfuric acid reacted, forming water and copper II sulfate. This method helps to avoid any excess sulfuric acid remaining in the solution, ensuring that all copper II oxide reacts completely to form the desired copper II sulfate salt.
What happens when you add excess copper oxide to dilute sulphuric acid?
When excess copper oxide is added to dilute sulfuric acid, the excess copper oxide will react with the acid to form copper sulfate and water. The reaction will continue until all the copper oxide is used up. This is known as a limiting reactant situation, where one reactant is completely consumed before the other.
What are the two indirect method of titration?
The two indirect methods of titration are back titration and reverse titration. In back titration, an excess of a reagent is added to react with the analyte, and then the unreacted excess is titrated to determine the amount that reacted with the analyte. In reverse titration, a standard solution is first added to a known amount of analyte to react completely, and then the excess standard solution is titrated back to determine the amount that reacted with the analyte.
Why amnomiun thiocyanate is added in the titration of sodium thiosulphate with copper?
Ammonium thiocyanate is added in the titration of sodium thiosulphate with copper to detect the end point of the reaction. When all the thiosulfate ions react with copper ions, excess copper ions will react with ammonium thiocyanate forming a reddish-brown complex. This color change indicates that all the thiosulfate has reacted and the titration is complete.
What colour change is seen when excess potassium iodine is reacted with chlorine?
When excess potassium iodide is reacted with chlorine, the solution changes from colorless to dark brown due to the formation of Iodine (I2). Excess potassium iodide reacts with chlorine to form iodine, which imparts the dark brown color to the solution.
Why was the copper II oxide added in excess to dilute sulfuric acid to form the soluble salt copper II sulphate?
Copper II oxide was added in excess to ensure that all the sulfuric acid reacted, forming water and copper II sulfate. This method helps to avoid any excess sulfuric acid remaining in the solution, ensuring that all copper II oxide reacts completely to form the desired copper II sulfate salt.
What happens when you add excess copper oxide to dilute sulphuric acid?
When excess copper oxide is added to dilute sulfuric acid, the excess copper oxide will react with the acid to form copper sulfate and water. The reaction will continue until all the copper oxide is used up. This is known as a limiting reactant situation, where one reactant is completely consumed before the other.
What happen to the original magnesium after it has been burned?
If completely burnt (in excess of oxygen), all the magnesium will be converted to magnesium oxide.
What are the two indirect method of titration?
The two indirect methods of titration are back titration and reverse titration. In back titration, an excess of a reagent is added to react with the analyte, and then the unreacted excess is titrated to determine the amount that reacted with the analyte. In reverse titration, a standard solution is first added to a known amount of analyte to react completely, and then the excess standard solution is titrated back to determine the amount that reacted with the analyte.
Why amnomiun thiocyanate is added in the titration of sodium thiosulphate with copper?
Ammonium thiocyanate is added in the titration of sodium thiosulphate with copper to detect the end point of the reaction. When all the thiosulfate ions react with copper ions, excess copper ions will react with ammonium thiocyanate forming a reddish-brown complex. This color change indicates that all the thiosulfate has reacted and the titration is complete.
What was done in the experiment to ensurethat all KHCO3 was react?
In the experiment, excess HCl was added to ensure that all KHCO3 was reacted. Excess reactants ensure that all of the limiting reactant is completely consumed in the reaction, leaving none unreacted. When all KHCO3 reacts, the reaction reaches completion.
What colour change is seen when excess potassium iodine is reacted with chlorine?
When excess potassium iodide is reacted with chlorine, the solution changes from colorless to dark brown due to the formation of Iodine (I2). Excess potassium iodide reacts with chlorine to form iodine, which imparts the dark brown color to the solution.
What was done in the experiment to ensure that all KHCO3 was react?
In the experiment, excess HCl was added to the solution containing KHCO3. This ensured that all of the KHCO3 would react completely, as any unreacted KHCO3 would still be neutralized by the excess HCl.
Why do we add an excess of copper carbonate to sulphuric acid when preparing the salt copper sulphate?
Adding an excess of copper carbonate ensures that all the sulfuric acid is fully neutralized and reacts with the copper carbonate to form copper sulfate. This guarantees that the maximum amount of copper sulfate is produced during the reaction.
How do you get rid of excess copper from the body?
Excess copper can be removed from the body through chelation therapy, where a medication binds to the copper allowing it to be excreted in the urine. It is important to consult a healthcare professional for proper diagnosis and treatment of copper toxicity. Avoiding foods high in copper and increasing intake of zinc-rich foods may also help balance copper levels in the body.
Where is the excess copper from after adding zinc to copper sulfate?
The "excess" metallic copper produced by adding zinc metal to a copper sulfate solution comes from exchanging zinc atoms from the metal for copper atoms from the copper sulfate solution. During the reaction, the zinc atoms are ionized to cations and the copper cations from the solution are reduced to neutral atoms.
What is observed when copper oxide is added into excess dilute sulphuric acid?
When copper oxide is added into excess dilute sulphuric acid, it reacts to form copper sulfate and water. Additionally, hydrogen gas is evolved during the reaction.
