Difference Between Equivalence Point and Endpoint

Main Difference

The main difference between equivalence point and endpoint is that equivalence point is the precise finishing point where the chemical reaction usually comes to end, whereas endpoint is the limit where the alteration in color happens in the arrangement.

Equivalence Point vs. Endpoint

The equivalence point is the exact point where the chemical reaction ends in the titration mixture, whereas endpoint is the point where the color change occurs in the arrangement. Equivalence point provides that point, where the unknown analyte has completely reacted with titrant and reactions, ends while endpoint does not always provide that point where the unknown analytic has completely reacted with the titrant. In equivalence point, the color change in the reaction mixture does not always specify a particular equivalence point; on the other hand, in the endpoint, the color change always indicates the endpoint. Equivalence point comes before the endpoint; on the contrary, endpoint comes after the equivalence point. Weak acids in equivalence point can have multiple equivalence point; conversely, weak acids in endpoint can have only one endpoint. Equivalence point occurs when the standard solution, the number of moles of the titrant, is equal to the number of the moles of the analyte and the solution with unknown concentrations; on the flip side, endpoint occurs when there is a color change in the reaction. Another means of equivalence point is that the titrant has reacted fully with the analyte, whereas when there are signals of completion of titration, that is the endpoint of the reaction mixture. If the pH of the titrant corresponds to the pH at the equivalence point, then equivalence point and endpoint can occur at the same time.

Comparison Chart

Equivalence PointEndpoint
The equivalence point is the precise limit where the chemical reaction stops in the titration combination.The endpoint is the point where the color change occurs in the arrangement.
Stoichiometry
Provides that point where the unknown analyte has completely reacted with titrant and reactions endsDoes not always provide that point where the unknown analytic has completely reacted with the titrant
Color Change
Does not always specify particular equivalence pointAlways indicates the endpoint
End of Reaction
Comes before the endpointComes after the equivalence point
Weak Acids
Can have multiple equivalence pointCan have only one endpoint
Point of Occurrence
Occurs when the standard solution, the number of moles of the titrant, is equal to the number of the moles of the analyte and the solution with unknown concentrationsOccurs when there is a color change in the reaction
Another Mean of Definitions
The equivalence point is that the titrant has reacted fully with the analyteWhen there are signals of completion of titration, that is the endpoint of the reaction mixture

What is the Equivalence Point?

The equivalence point is the exact point where the chemical reaction ends in the titration mixture. Another means of equivalence point is that the titrant has reacted fully with the analyte. Equivalence point delivers that main limit where the unidentified analyte has entirely reacted with reactions ends and titrant. In equivalence point, the color alteration in the reaction combination does not generally always specify particular equivalence point. Equivalence point occurs when the standard solution, the number of moles of the titrant, is equal to the number of the moles of the analyte and the solution with unknown concentrations. Equivalence point usually always comes before the reach of the endpoint.

Methods of Determining the Equivalence Point

  • Color Change of Self-Indicators: The presence of color transformation specifies the equivalence point by means of self-indicators as reactants in reactions, as true indicators are not used.
  • Spectroscopy: Can be helpful for providing colorful reaction mixtures.
  • Conductance: It can also be helpful to control the equivalence point of the titration.
  • Endpoint: Equivalence point, sometimes can be considered as the endpoint as they are almost equal.

What is Endpoint?

The endpoint is the point where the color change occurs in the arrangement. Another means of endpoint is that when there are signals of completion of titration, that is the endpoint of the reaction mixture. The endpoint generally does not continuously offer that limited point where the unidentified analytic has fully reacted with the titrant. In the endpoint, the color alteration usually always specifies the endpoint. Endpoint normally always derives next to the equivalence point. Weak acids in endpoint can have only one endpoint. Endpoint occurs when there is a color change in the reaction. In various reactions of endpoint, where self-indicators are brought to use when the entire quantity of the unidentified reactant has completely reacted with the titrant, the limit is then given.

Key Differences

  1. The equivalence point is the precise limit where the chemical reaction comes to an end in the titration combination, whereas endpoint is the limit where color modification happens in the procedure.
  2. Equivalence point provides that point, where the unknown analyte has completely reacted with titrant and reactions, ends while endpoint does not always provide that point where the unknown analytic has completely reacted with the titrant.
  3. In equivalence point, the color change in the reaction mixture does not always specify a particular equivalence point; on the other hand, in the endpoint, the color change always indicates the endpoint.
  4. Equivalence point comes before the endpoint; on the contrary, endpoint comes after the equivalence point.
  5. Weak acids in equivalence point can have multiple equivalence point; conversely, weak acids in endpoint can have only one endpoint.
  6. Equivalence point occurs when the standard solution, the number of moles of the titrant, is equal to the number of the moles of the analyte and the solution with unknown concentrations; on the flip side, endpoint occurs when there is a color change in the reaction.
  7. Another means of equivalence point is that the titrant has reacted fully with the analyte, whereas when there are signals of completion of titration, that is the endpoint of the reaction mixture.
  8. If the pH of the titrant corresponds to the pH at the equivalence point, then equivalence point and endpoint can occur at the same time.

Conclusion

Above discussion concludes that equivalence point is the precise endpoint where the chemical reaction ends and the color change in the reaction mixture does not always specify a particular equivalence point, whereas endpoint is the limit where the change in color happens in the arrangement.

Harlon Moss

Harlon currently works as a quality moderator and content writer for Difference Wiki. He graduated from the University of California in 2010 with a degree in Computer Science. Follow him on Twitter @HarlonMoss

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