when the equivalence point of a titration is achieved..
Added:
(More precisely:)
The equivalence point is the point where the number of moles of base equal the number of moles of acid. The end point is the point where the indicator being used changes color (also 'indication point)'.
If the indicator is chosen correctly, the end point will essentially be exactly as near as possible at the equivalence point.
The point of the titration is to find the equivalence point -- the end point is just a very close approximation to it. This is because the pH of the solution changes very rapidly close to the equivalence point.
Therefore, the indicator will change color very close to the equivalence point because of the steepness of the pH change
Change color
change in pH, changes the colour (of the indicator)
The function is to change color. This happens when all the H+ ( or H3O+) from the acid has been neutralized, an indicator in the sample will change
according to change of PH of medium where the indicator color is changed according to PH of medium
The indicator will change color as the pH changes.
Change color
change in pH, changes the colour (of the indicator)
The function is to change color. This happens when all the H+ ( or H3O+) from the acid has been neutralized, an indicator in the sample will change
according to change of PH of medium where the indicator color is changed according to PH of medium
The indicator will change color as the pH changes.
The indicator should change color right at the equivalence point, so 5.
the reason why a indicator is important in some titration is to show a change in the solution. for example as a solution runs from acidic to basic the indicator may turn a different color. but this is the reason why it is important inmost experiments.
hc20h1354
A general acid-base titration may not indicate a color change. Therefore an indicator is used. Among the most used indicators are methyl red, methyl orange and bromothymol blue.
when stoichiometric amounts of the titrant and the analyte have completely reacted. this differs from an endpoint which is when a secondary indicator's color change takes place. :) hope that helps
when the colour of the indicator used is the color it should be in neutral
When you have passed the tipping point and the color indicator turns from it's color to the clear color of the original solution. Then you back titrate to color again.