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Phenolphthalein and other indicators which themselves are weak acid show a colour change in basic medium (between pH value 7.1 to 14) so in acids they remain unchanged.
Wiki User
∙ 14y ago
Wiki User
∙ 7y agoPhenolphthalein is colorless in acidic solutions.
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Why is it that the presence of indicator does not affect reaction between acid and base?
indicators are dyes that have one color in acidic medium and different color in a basic solution.so it cannot have any effect on any of the solution because it is colorless
What is the color of purple bougainvillea indicator if the substance is acidic?
acidic - magenta basic - no colour change
How do you detect the equivalence point in acidic medium?
By titration (manual or electrochemical) with a base and an indicator.
What is the color of marigold flower indicator when acidic substance is added to it?
No color change is there...
What is the colour of methyl orange in alkaline medium?
the color of methyl orange in an acidic medium is orange
Which indicator isn't used in acidic medium?
A turn left or turn right indicator.
Why is it that the presence of indicator does not affect reaction between acid and base?
indicators are dyes that have one color in acidic medium and different color in a basic solution.so it cannot have any effect on any of the solution because it is colorless
What is the color of purple bougainvillea indicator if the substance is acidic?
acidic - magenta basic - no colour change
How do you detect the equivalence point in acidic medium?
By titration (manual or electrochemical) with a base and an indicator.
What is the color of marigold flower indicator when acidic substance is added to it?
No color change is there...
Why indicator change color?
Indicators are mostly organic aromatic compounds in acidic to basic medium or vice versa the resonating structures of indicators become change which are responsible to change the colour.
What is the colour of methyl orange in alkaline medium?
the color of methyl orange in an acidic medium is orange
What indicator has no color at all?
phenolphthalien when added to an acidic solution has a colourless indicator. but shows pink colour for basic solution.
What is the color of phenolphthalein indicator in acidic medium?
it goes colourless in an alkiline soloution but in an acidic substance it goes a fushia pink colour! You are WRONG! The solution will be colourless at acidic and neutral pH and goes pink above about pH 8, I hope you aren't a science teacher.
How do you determine the indicator constant?
[OH-]=[acidic medium]. kw /[basic medium]KOH At const temp and pressure Kw/KOH=const.=K1=[H+][In-]/[HIn] pk1 is generally termed as indicator const.
Is alcohol neutral indicator?
In fact, alcohols are slightly acidic. In practical purposes, usually it can be considered as a neutral medium.
What is indicator How does it indicates completion of neutralization?
An indicator refers to a substance that changes color to show how a given substance is either acidic or basic.
