1 / 13

Conjugate Pairs

Conjugate Pairs. The strength of an acid (or base) is determined by the amount of IONIZATION . HNO 3 , HCl, H 2 SO 4 and HClO 4 are among the only known strong acids. Strong vs. Weak Acids. Strong acid is one that ionizes completely

mickey
Download Presentation

Conjugate Pairs

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. Conjugate Pairs

  2. The strength of an acid (or base) is determined by the amount of IONIZATION. HNO3, HCl, H2SO4 and HClO4 are among the only known strong acids.

  3. Strong vs. Weak Acids • Strong acid is one that ionizes completely • HNO3 (aq) ---> H+ (aq) + NO3- (aq)

  4. Weak Acids • Weak acids are much less than 100% ionized in water. • One of the best known is acetic acid = CH3CO2H

  5. Base Strength • Any substance that ionizes completely to form OH- ions are strong bases • These solutions are said to be alkaline • NaOH, Ca(OH)2

  6. Acid/Base Reactions • Whenever an acid and base react, two conjugates are produced • Conjugate base – the species that remains after the acid has given up its proton • Conjugate acid – the species that remains after the base has accepted the proton

  7. Equilibrium • Acid/Base reactions are not just forward, the reverse reaction is also always occurring • The reaction always favors the production of the weaker acid and weaker base • The stronger the two initial reactants, the more violent the reaction

  8. Example • For the reaction shown below, HC2H3O2 + H2O  C2H3O2- + H3O+ a) Identify the acid, base, conjugate acid, and conjugate base. b) Determine which direction (forward or reverse) is favored.

More Related