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A universal indicator is an indicator that changes color along with changes in pH level. The purpose of using it is to find a point at which a mixture of acid and base becomes neutral.
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∙ 14y ago
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What is the purpose for using phenolphthalein for an acid base titration?
It's the colour indicator you watch for during the titration.
What is the colour change in the titration of KOH with H2SO4 using methyl orange as the indicator?
orange
Does citric acid turn red using a universal indicator?
You tell me!
Can an indicator provide an exact pH?
An indicator can provide exact pH if you are using the neutralization titration. Paper strip pH indicator are not an exact measurement but a high, medium, and low indication of acids and bases.
Why is a back titration sometimes used for an analysis rather than a direct titration?
Back titrations are used when a reaction occurring in the conical flask can not be detected using an indicator such as phenolphthalein. So, after this titration has been performed, the 'excess' is then titrated with something that can be detected more easily using phenolphthalein etc.
What is the purpose for using phenolphthalein for an acid base titration?
It's the colour indicator you watch for during the titration.
What is the colour change in the titration of KOH with H2SO4 using methyl orange as the indicator?
orange
What are two ways to identify the equivalent point in a titration?
- using a color indicator- by potentiometry
Theory of titration of silver nitrate solution using precipitation and adsorption indicators?
fluorescein can be used as indicator in the titration of silver and chlorided
Does citric acid turn red using a universal indicator?
You tell me!
Can an indicator provide an exact pH?
An indicator can provide exact pH if you are using the neutralization titration. Paper strip pH indicator are not an exact measurement but a high, medium, and low indication of acids and bases.
Why is a back titration sometimes used for an analysis rather than a direct titration?
Back titrations are used when a reaction occurring in the conical flask can not be detected using an indicator such as phenolphthalein. So, after this titration has been performed, the 'excess' is then titrated with something that can be detected more easily using phenolphthalein etc.
How you can conclude the pH value of a fabric?
we can conclude by using a ph paper or universal indicator.
How do scientists measure food pH?
Through using the universal indicator or the PH probe.
What is the advantage of using indicator rather than using thermometer to detect the end point of an acid base titration?
At the endpoint of an acidimetric titration there is no temperature change at all, so a thermometer won't indicate that.You'd better use the color change of a proper indicator when the pH changes at the end point. The only advantage is that it works well!
How do you check the alcohol percentage in wine?
Using a method called back-titration, the alcohol concentration of a grape wine can be determined. Just google steps and procedure of back-titration and find out what standard solution and indicator you will need. :)
What are the major disadvantages of using an indicator to measure the end point in an acid-base titration?
they only work within certain ph ranges
