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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
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.
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.
Indicators used in acid base titration?
It depends on the acid or base used. For strong acid vs. strong base, phenolphthalein can be used as indicator. For strong acid vs. weak base, methyl orange can be used as indicator. For weak acid vs. strong base, phenolphthalein can be used as indicator.
How do you prepare methyl orange indicator for titration?
To prepare methyl orange indicator for titration, dissolve 0.1g of methyl orange powder in 100mL of distilled water. This will give you a 0.1% solution of methyl orange which is suitable for use as an indicator in acid-base titrations.
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
What are two different types of indicators used in acid base titration?
Two common types of indicators used in acid-base titrations are phenolphthalein and methyl orange. Phenolphthalein changes from colorless to pink as the pH transitions from acidic to slightly basic, making it suitable for strong acid-strong base titrations. Methyl orange, on the other hand, shifts from red to yellow in the pH range of 3.1 to 4.4, making it ideal for titrations involving strong acids and weak bases. Each indicator is chosen based on the pH range of the equivalence point of the specific titration being conducted.
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.
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 are some of the most common acid and base indicators?
Phenolphthalein Methyl Orange Litmus Bromophenol Blue
What would you mix an alkali or acid with to get a coloured substaince?
You could mix an acid or alkali with an indicator such as methyl orange or phenolphthalein. Phenolphthalein is colorless in an acidic medium and pink in an alkaline one.
Indicators used in acid base titration?
It depends on the acid or base used. For strong acid vs. strong base, phenolphthalein can be used as indicator. For strong acid vs. weak base, methyl orange can be used as indicator. For weak acid vs. strong base, phenolphthalein can be used as indicator.
How do you prepare methyl orange indicator for titration?
To prepare methyl orange indicator for titration, dissolve 0.1g of methyl orange powder in 100mL of distilled water. This will give you a 0.1% solution of methyl orange which is suitable for use as an indicator in acid-base titrations.
Is phenolphthalein an indicator?
Yes, phenolphthalein is an indicator commonly used in acid-base titrations to determine the endpoint of the reaction.
Why methyl orange used in the titration and not other indicator?
Methyl orange is commonly used in acid-base titrations because it changes color sharply in the pH range of about 3.1 to 4.4, making it easy to detect the endpoint. Other indicators may have different color change ranges that may not be ideal for acid-base titrations.
What are some indicators of acids?
Methyl Red, methyl orange, bromophenol blue, phenolphthalein, thymolphthalein, bromocresol green, bromothymol blue are all used as acid base indicators.
What is a indicator of acid?
All acidic solutions are colourless in phenolphthalein, pink in methyl orange solution and turns blue litmus paper into red.
