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Titration without indicator is only possible with another measurement:
Examples / possibilities:
- pH-electrode measurement (acid-base titration)
- Conductivity measurement (acid-base titration or ion-reaction)
- Change of color by excess or depletion of the reactant/titrant (redox titration)
- Precipitation by excess or depletion of the reactant/titrant
Added:
(The following was more or less written for 'indicator' titrations, but same principles count for other 'sharply' changing properties):
The equivalence point is the point where the number of moles of titrant equal the number of moles of the reactant. The end point is the point where the indicator being used changes color (also 'indication point)'.
If the indicator is chosen correctly, the end point will essentially be as near as possible at the equivalence point.
The point of the titration is to find the equivalence point -- the end point is just a very close approximation to it. This is because the pH of the solution changes very rapidly close to the equivalence point.
Therefore, the indicator will change color very close to the equivalence point because of the steepness of the pH change
What else can I help you with?
What methods can be used to find the equivalence point in a titration experiment?
In a titration experiment, the equivalence point can be found using methods such as using a pH meter to detect a sudden change in pH, using an indicator that changes color at the equivalence point, or using a titration curve to identify the point of neutralization.
How do you detect the equivalence point in acidic medium?
In acidic medium, the equivalence point can be detected using an acid-base indicator that undergoes a color change at the pH corresponding to the equivalence point. Alternatively, a pH meter can be used to monitor the pH of the solution during the titration, with the equivalence point identified as the point of maximum change in pH.
How do you calculate the equivalence point in a titration?
The equivalence point in a titration is calculated by determining the point at which the moles of the titrant added are equal to the moles of the analyte being titrated. This is typically done by monitoring a change in pH or using an indicator to detect the endpoint of the reaction.
Why is important that the indicator is present in the solution during the course of titration?
the reason why a indicator is important in some titration is to show a change in the solution. for example as a solution runs from acidic to basic the indicator may turn a different color. but this is the reason why it is important inmost experiments.
Why is phenolphthalein used in the titration experiment?
Phenolphthalein is used in titration experiments as an acid-base indicator because it changes color at a specific pH range (pH 8.2-10.0), making it easy to visually detect the endpoint of the titration when the solution changes from acidic to basic or vice versa. This helps in determining the volume of titrant needed to reach the equivalence point accurately.
What methods can be used to find the equivalence point in a titration experiment?
In a titration experiment, the equivalence point can be found using methods such as using a pH meter to detect a sudden change in pH, using an indicator that changes color at the equivalence point, or using a titration curve to identify the point of neutralization.
How do you detect the equivalence point in acidic medium?
In acidic medium, the equivalence point can be detected using an acid-base indicator that undergoes a color change at the pH corresponding to the equivalence point. Alternatively, a pH meter can be used to monitor the pH of the solution during the titration, with the equivalence point identified as the point of maximum change in pH.
How do you calculate the equivalence point in a titration?
The equivalence point in a titration is calculated by determining the point at which the moles of the titrant added are equal to the moles of the analyte being titrated. This is typically done by monitoring a change in pH or using an indicator to detect the endpoint of the reaction.
Describe a method to visually detect the end point of a titration without the use of instruments?
The method used most often in chemistry labs is by use of a pH indicator in the sample being titrated. When you reach the titration point, the indicator will change colors, demonstrating the end point of the titration.
Why is important that the indicator is present in the solution during the course of titration?
the reason why a indicator is important in some titration is to show a change in the solution. for example as a solution runs from acidic to basic the indicator may turn a different color. but this is the reason why it is important inmost experiments.
Why is phenolphthalein used in the titration experiment?
Phenolphthalein is used in titration experiments as an acid-base indicator because it changes color at a specific pH range (pH 8.2-10.0), making it easy to visually detect the endpoint of the titration when the solution changes from acidic to basic or vice versa. This helps in determining the volume of titrant needed to reach the equivalence point accurately.
What is meant by External Indicator used in titration?
An external indicator in titration is a substance that is added in small amounts to the analyte solution during titration to signal the endpoint of the reaction. It changes color at or near the equivalence point, making it easier for the observer to detect when the reaction is complete. Common examples of external indicators include phenolphthalein and methyl orange.
What is the function of starch solution in the redox titration?
Starch solution is used as an indicator in redox titrations to detect the endpoint of the titration. It forms a complex with triiodide ions to produce a blue-black color when excess iodine is present, indicating that the reaction has reached completion. This helps in determining the equivalence point of the titration.
Theory of titration of silver nitrate solution using precipitation and adsorption indicators?
In the titration of silver nitrate solution, a precipitation indicator like chloride ion is used to detect the endpoint through the formation of a white precipitate (AgCl). An adsorption indicator like chromate ion can also be used, where the color change of the adsorbed chromate ion on silver chloride indicates the endpoint. Both indicators are effective in detecting the equivalence point in silver nitrate titrations.
Why kmno4 is used to detect the amount of h202 used?
The color change with oxidation of the permangante changes from purple to clear allows the titration to be conducted without using a seperate indicator.
Can we carry out an iodometric titration using a potentiometer?
No, iodometric titration is typically done using a standard titration setup with a burette and indicator to detect the endpoint. A potentiometer measures the voltage produced in a system, making it unsuitable for this type of titration.
What is Fajan's method of argentometric titration?
Fajan's method of argentometric titration involves the use of potassium chromate as an indicator to detect the end point of a titration between silver ions and chloride ions. The indicator changes color from yellow to red when all the chloride ions have reacted with the silver ions, marking the end point of the titration.
