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Can you use indicator other than phenolphthalein in the titration of NaOH?
Yes, you can use indicators such as bromothymol blue or methyl orange in the titration of NaOH. These indicators change color at different pH ranges and can be used based on the specific pH endpoint needed for the titration.
Why methyl orange is used in titration of weak base against weak acid?
It is the best indicator for the situation. For other combinations of acids and bases other indicators are suited better. mostly it is because of how easy their colour changes or how obvious they are.
What is an indicator in an acid base titration?
An indicator is a substance that changes color in response to a change in pH during an acid-base titration. It is used to signal the endpoint of the titration when the amount of acid or base added is stoichiometrically equivalent to the amount of the other reactant. Common indicators include phenolphthalein, methyl orange, and bromothymol blue.
Why methyl orange used as indicator in titration instead phenolphtalein?
The choice of which indicator to use is determined by the range of pH where the indicatir changes colour and the equivalence point of the neutralisation reaction. Methyl orange changes color between pH3 and 4, phenolphthaein between and 8 and 10. It depends on what you are titrating which one you choose.
Why is phenolphthalein used in titration of weak acid instead of methyl orange?
Phenolphthalein is preferred in titration of weak acids because its color change occurs within a pH range of 8.2 to 10, making it ideal for detecting the endpoint of weak acid-strong base titrations. Methyl orange, on the other hand, changes color over a pH range of 3.1 to 4.4, which is not suitable for accurately titrating weak acids.
Can you use indicator other than phenolphthalein in the titration of NaOH?
Yes, you can use indicators such as bromothymol blue or methyl orange in the titration of NaOH. These indicators change color at different pH ranges and can be used based on the specific pH endpoint needed for the titration.
Why methyl orange is used in titration of weak base against weak acid?
It is the best indicator for the situation. For other combinations of acids and bases other indicators are suited better. mostly it is because of how easy their colour changes or how obvious they are.
What is an indicator in an acid base titration?
An indicator is a substance that changes color in response to a change in pH during an acid-base titration. It is used to signal the endpoint of the titration when the amount of acid or base added is stoichiometrically equivalent to the amount of the other reactant. Common indicators include phenolphthalein, methyl orange, and bromothymol blue.
Why methyl orange used as indicator in titration instead phenolphtalein?
The choice of which indicator to use is determined by the range of pH where the indicatir changes colour and the equivalence point of the neutralisation reaction. Methyl orange changes color between pH3 and 4, phenolphthaein between and 8 and 10. It depends on what you are titrating which one you choose.
Why is phenolphthalein used in titration of weak acid instead of methyl orange?
Phenolphthalein is preferred in titration of weak acids because its color change occurs within a pH range of 8.2 to 10, making it ideal for detecting the endpoint of weak acid-strong base titrations. Methyl orange, on the other hand, changes color over a pH range of 3.1 to 4.4, which is not suitable for accurately titrating weak acids.
What is screened methyl orange?
Screened methyl orange is a pH indicator consisting of a solution of methyl orange and xylene cyanol in ethanol. It is red in very acidic solution, grey in neutral solution, and green in very alkaline solution.
Why methyl orange is used instead of phenolphthalein in hcl and naoh titration?
This is so since the pH at the end point of Phenolphthalein is 9.1 and methyl orange is 3.7. For a strong acid strong base titration which the end point is between 3-11 phenolphthalein is used
Besides water what other solvent can be used to separate screened methyl orange?
Methyl orange can also be separated using solvents such as ethanol, acetone, or methanol. These solvents can be used in a similar way as water to dissolve and separate the components of a mixture containing methyl orange.
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.
Why methyl orange not used in acid-base titrations?
Methyl orange is not suitable for acid-base titrations because its color change occurs over a broad pH range (pH 3.1 to 4.4), making it less precise for determining the endpoint of the titration. It is also susceptible to interference from other substances present in the solution, leading to inaccurate results. Other indicators, such as phenolphthalein or bromothymol blue, are preferred for acid-base titrations due to their sharper color changes at specific pH values.
What is the difference between condactometer titration and normal titation?
Conductometric titration measures changes in the electrical conductivity of a solution during a titration. Normal titration, on the other hand, typically involves measuring changes in pH or using an indicator to determine the endpoint. Conductometric titration can be more precise for reactions that do not involve a change in pH.
How does the amount of indicator effect the result of a titration?
The amount of indicator used in a titration can impact the accuracy of the endpoint determination. Using too much indicator can mask subtle color changes, leading to difficulty in pinpointing the endpoint. On the other hand, using too little indicator may cause the endpoint to be ambiguous or not easily detectable. It is important to carefully select the appropriate amount of indicator to ensure precise and reliable results.
