1 / 4

Understanding Acid-Base Titrations and Buffered Solutions: A Comprehensive Overview

Acid-base titrations are crucial techniques used to determine the concentration of acids or bases in a solution through neutralization reactions. A titration involves delivering a measured volume of titrant with a known concentration into an analyte until reaching the equivalence point, where the reaction between H+ and OH- is complete. Indicators help identify this point, often around pH 7. Additionally, buffered solutions resist pH changes from added acids or bases, which is essential for the stability of living organisms. Learn more about these fundamental concepts in chemistry.

alize
Télécharger la présentation

Understanding Acid-Base Titrations and Buffered Solutions: A Comprehensive Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Notes 16.3 Acid/Base Titration

  2. Acid-Base Titrations • A neutralization reaction is when there is equal amounts of H+ and OH- available for a reaction and a neutral solution (pH=7) will result. • To analyze the acid/base content of a solution, titrations are often performed • A titration involves the delivery of a measured volume of a solution of known concentration ( the titrant ) into the solution being analyzed ( the analyte ). • The titrant contains a substance that reacts in a known way with the analyte. • If the analyte contains a base, the titrant would be a standard solution ( a solution of known concentration) of a strong acid.

  3. To run the titration the standard solution of titrant is loaded into a buret. • The buret is a cylindrical device that allows accurate measurement of the delivery of a given volume of liquid. • The titrant is added slowly to the analyte until exactly enough has been added to just react with all of the analyte. • This point is called the stoichiometric point or equivalence point for the titration. • For an acid/base titration the equivalence point can be determined with an indicator ( one that changes color near pH of 7) • Titration curve or pH curve changes very rapidly when the titration nears the equivalence point. ( page 584)

  4. Buffered Solutions • A buffered solution is one that resists a change in its pH even when a strong acid or base is added to it. • Buffered solutions are vitally important to living organisms whose cells can survive only in a very narrow pH range • A solution is buffered by the presence of a weak acid and its conjugate base.

More Related