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What happens at the molecular level when the equivalence point is reached during the titration of the sulfuric acid H2S04 and potassium hydroxide KOH?
At the equivalence point of the titration between sulfuric acid (H2SO4) and potassium hydroxide (KOH), all the moles of H+ ions from the acid react with an equal number of moles of OH- ions from the base to form water (H2O). The resulting solution will be neutral as all the acid has been neutralized by the base, and no excess ions remain in solution.
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What is the product of titration hydrogen phosphate and potassium hydroxide?
The product of titration between hydrogen phosphate and potassium hydroxide would be potassium phosphate and water. The reaction involves the exchange of ions, with the hydrogen phosphate ion reacting with the potassium hydroxide to form potassium phosphate and water as the products.
How can one determine the molecular weight from a titration curve?
To determine the molecular weight from a titration curve, one can identify the equivalence point on the curve where the amount of titrant added is equal to the amount of analyte present. By knowing the molarity of the titrant and the volume added at the equivalence point, one can calculate the moles of analyte. Then, by dividing the mass of the analyte by the moles, the molecular weight can be determined.
Determination the concentration of concentrated hydrochloric acid?
To determine the concentration of concentrated hydrochloric acid, you can perform a titration with a standardized solution of a base, such as sodium hydroxide. By carefully adding the base to the acid solution and monitoring the pH change using a pH indicator or a pH meter, you can identify the equivalence point and calculate the concentration of the acid using the volume and molarity of the base solution used in the titration.
Why potassium permanganate is used as a self indicator in the titration of oxalic acid?
Potassium permanganate is used as a self-indicator in the titration of oxalic acid because the initial pink color of potassium permanganate is decolorized in the presence of oxalic acid due to its reducing properties. The endpoint of the titration is reached when all the oxalic acid has reacted with the potassium permanganate, causing the pink color to persist. This change in color helps in determining the equivalence point of the titration.
What salts are made from titration?
Salts formed from titration depend on the reactants involved. For example, the reaction between hydrochloric acid and sodium hydroxide forms sodium chloride (table salt) and water. Similarly, the reaction between sulfuric acid and potassium hydroxide forms potassium sulfate and water.
What is the product of titration hydrogen phosphate and potassium hydroxide?
The product of titration between hydrogen phosphate and potassium hydroxide would be potassium phosphate and water. The reaction involves the exchange of ions, with the hydrogen phosphate ion reacting with the potassium hydroxide to form potassium phosphate and water as the products.
How can one determine the molecular weight from a titration curve?
To determine the molecular weight from a titration curve, one can identify the equivalence point on the curve where the amount of titrant added is equal to the amount of analyte present. By knowing the molarity of the titrant and the volume added at the equivalence point, one can calculate the moles of analyte. Then, by dividing the mass of the analyte by the moles, the molecular weight can be determined.
How do you determine the concentration of concentrated hydrochloric acid?
Method: titration with a standardized solution of sodium (or potassium) hydroxide.
Determination the concentration of concentrated hydrochloric acid?
To determine the concentration of concentrated hydrochloric acid, you can perform a titration with a standardized solution of a base, such as sodium hydroxide. By carefully adding the base to the acid solution and monitoring the pH change using a pH indicator or a pH meter, you can identify the equivalence point and calculate the concentration of the acid using the volume and molarity of the base solution used in the titration.
Why potassium permanganate is used as a self indicator in the titration of oxalic acid?
Potassium permanganate is used as a self-indicator in the titration of oxalic acid because the initial pink color of potassium permanganate is decolorized in the presence of oxalic acid due to its reducing properties. The endpoint of the titration is reached when all the oxalic acid has reacted with the potassium permanganate, causing the pink color to persist. This change in color helps in determining the equivalence point of the titration.
What salts are made from titration?
Salts formed from titration depend on the reactants involved. For example, the reaction between hydrochloric acid and sodium hydroxide forms sodium chloride (table salt) and water. Similarly, the reaction between sulfuric acid and potassium hydroxide forms potassium sulfate and water.
Which piece of apparatus is used to add dilute nitric acid to potassium hydroxide?
A burette is typically used to add dilute nitric acid to potassium hydroxide in a controlled and precise manner for titration experiments.
What is the pH at the second equivalence point in a titration?
The pH at the second equivalence point in a titration is typically around 9 to 10.
In a titration when the number of moles of hydrogen ions equals the number of moles of hydroxide ions what is said to have happened?
When the number of moles of hydrogen ions equals the number of moles of hydroxide ions in a titration, it means that the solution has reached the equivalence point. At this point, the solution is neutral and the pH is typically around 7, indicating that the acid and base have reacted completely with each other.
What is the difference between end point titration and equivalence point?
Endpoint titration refers to the point in a titration where the indicator changes color, signaling that the reaction is complete. Equivalence point, on the other hand, is the point in the titration where the moles of the titrant are stoichiometrically equal to the moles of the analyte. The equivalence point does not necessarily coincide with the endpoint, as the indicator may change color before or after reaching the equivalence point.
What is the significance of the equivalence point in a titration curve and how can one accurately find the equivalence point during a titration process?
The equivalence point in a titration curve is where the amount of titrant added is stoichiometrically equivalent to the amount of analyte present. This point signifies the completion of the reaction. To accurately find the equivalence point during a titration process, one can use an indicator that changes color at or near the equivalence point, or use a pH meter to monitor the pH changes in the solution. Additionally, one can perform a titration with a known concentration of titrant to determine the equivalence point more precisely.
Is the equivalence point of a titration always zero?
No, the equivalence point of a titration is not always zero. The equivalence point is the point in a titration where the amount of titrant added is stoichiometrically equivalent to the amount of analyte present in the sample, leading to a neutralization reaction. The pH at the equivalence point depends on the nature of the reaction and the strengths of the acid and base involved.
