Want this question answered?
an end point
the part with the end point does not, it stops at the end point. But if there is only one end point on a line, the other end does go on forever
A ray has only one end point.
point
No, it has two. A ray has one end point.
End point...
An indicator is so you can see when the end point of the reaction occurs, or when the reaction is complete. This can be an acid-base indicator such as methyl orange which determines the end point with a colour change.
Choose the indicator so that the end point and equivalance point are at the same volume.Type your answer here...
When the indicator shows that the test liquid is neutral.
When the indicator shows that the test liquid is neutral.
Equivalence point is the point at which the reaction is justcomplete. End point is when there is a permanent color change due to the presence of a indicator.
Phenolphthalein is an acid base indicator - it does not show the end-point in a thiosulfate type titration. Starch gives a very sharp end-point from a blue-black to colorless end-point when titrating iodine with thiosulfate. Phenolphthalein would just not detect this change.
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.
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
The method used most often in chemistry labs is by use of a pH indicator in the sample being titrated. When you reach the titration point, the indicator will change colors, demonstrating the end point of the titration.
منحني
Pyrocatechol indicator is used as an end point indicator for titrating nickel metal in a sulfamate nickel cobalt plating bath. It may also be used for other chemical analysis titrations.