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Methyl orange is not suitable as an indicator in weak acid and strong base titrations because its color change occurs at a pH range of 3.1 to 4.4, which is too low for the equivalence point of such titrations. In a weak acid and strong base scenario, the equivalence point typically falls in the pH range of 8 to 10, where methyl orange would remain yellow and not display a clear color change. Therefore, it cannot effectively signal the endpoint of the titration.
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What is the solution of NaOH in methyl orange indicator?
The solution of NaOH in methyl orange indicator will turn from yellow to red. Methyl orange is an acid-base indicator that changes color in response to a change in pH. In the presence of a strong base like NaOH, the indicator will change to a red color indicating the basic nature of the solution.
What colour is methyl orange in ch3ooh?
The color of methyl orange is red. The color is red when the acetic acid is below pH 3.1.
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 phenolpthalein use first before methyl orange?
Phenolphthalein is typically used first in acid-base titrations because it has a clear color change from colorless to pink around a pH of 8.2 to 10, making it ideal for detecting the endpoint of strong acid versus strong base titrations. Methyl orange, on the other hand, changes color from red to yellow between pH 3.1 and 4.4, which is better suited for strong acid versus weak base titrations. Using phenolphthalein first allows for a more precise determination of the endpoint in higher pH ranges before transitioning to methyl orange for lower pH applications.
What indicator would you use if the end point for a titration occurred at pH 10.5?
A suitable indicator for an endpoint at pH 10.5 would be methyl orange. At this pH, methyl orange changes color from red to yellow, making it a good choice for acid-base titrations that end around pH 10.5.
What happens when nitric acid is mixed with methyl orange?
When nitric acid reacts with methyl orange, the color of the solution changes. Methyl orange is an indicator that changes color from orange/yellow in acidic solutions to red in basic solutions. In the presence of nitric acid, which is a strong acid, the solution would turn red.
What happens when methyl orange is added to sulphuric acid?
Methyl orange is a pH indicator that changes color in acidic and basic solutions. When added to sulfuric acid, which is a strong acid, the methyl orange changes color from yellow to red. This color change indicates that the solution is highly acidic.
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 is the reaction of methyl orange to base?
Methyl orange is an acid-base indicator that changes color in the presence of acids and bases. In basic conditions, such as with a strong base like sodium hydroxide, methyl orange will turn yellow or orange.
Why methyl orange is used as indicator in determination of ZnO?
Methyl orange is used as an indicator in the determination of ZnO because it changes color from red to yellow at a pH range of 3.1-4.4, which is suitable for the titration of ZnO with a strong acid like hydrochloric acid. This color change helps in determining the endpoint of the titration accurately.
What indicator would be suitable for a reaction between a strong acid and a weak alkali?
Methyl Red
What is the equation of titration with methyl orange?
The equation of the titration using methyl orange as an indicator depends on the specific reaction being titrated. Methyl orange is typically used in acid-base titrations, where the indicator changes color in the presence of a certain pH range. For example, in a titration of a strong acid (e.g., HCl) with a strong base (e.g., NaOH), the equation would involve the stoichiometry of the acid-base reaction, with the color change of methyl orange indicating the endpoint of the titration.
What indicators can be used in titration?
Acid Alkali Indicator Details Strong Strong Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised) Weak Strong Phenolphthalien pipette acid, and burette alkali (change from colouless to salmon pink when neutralised) Strong Weak Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised) Acid Alkali Indicator Details Strong Strong Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised) Weak Strong Phenolphthalien pipette acid, and burette alkali (change from colouless to salmon pink when neutralised) Strong Weak Methyl Orange pipette alkali, and burette acid (change from yellow to light pink when neutralised)
Which indicator is used in titration for strong acid?
For the titration of a strong acid, the indicator typically used is phenolphthalein. Phenolphthalein changes color in the pH range of 8.2 to 10, which is suitable for titrating a strong acid with a strong base to determine the equivalence point.
What colorimetric pH indicator should you use for ammonia and hydrochloric acid titration?
Since the titration is between a strong acid and a weak base, methylorange should be suitable as the equivalence point is around pH 5. The K of the indicator should be equal to the pH at the end point. Methyl orange is that indicator
What is the colour of methyl orange in alkali?
IN ACID: it turns methyl orange pink In base: it turns methyl orange yellow
