notes 16 1 n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Notes 16.1 PowerPoint Presentation
Download Presentation
Notes 16.1

Loading in 2 Seconds...

play fullscreen
1 / 6

Notes 16.1 - PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on

Notes 16.1. Acids and bases. Acids and Bases. Acids- sour taste Bases- bitter taste and slippery feel Arrhenius model- acids produce hydrogen ions in an aqueous solution where bases produce hydroxide ions

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Notes 16.1' - dara


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
notes 16 1

Notes 16.1

Acids and bases

acids and bases
Acids and Bases
  • Acids- sour taste
  • Bases- bitter taste and slippery feel
  • Arrhenius model- acids produce hydrogen ions in an aqueous solution where bases produce hydroxide ions
  • Bronsted-Lowry model- an acid is a proton (H+) donor, and a base is a proton acceptor
  • Conjugate acid- is formed when the proton is transferred to the base
  • Conjugate base- everything that remains of the acid molecule after a proton is lost
  • H3O+hydronium ion
acid strength
Acid Strength
  • Strong acid- an acid that completely dissociates to produce H+ions in solution
  • Weak acid- an acid that dissociates to a slight extent in aqueous solution
  • A strong acid contains a relatively weak conjugate base- one that has a low attraction for protons ( figure 16.1)
  • Common strong acids- sulfuric acid, hydrochloric acid, nitric acid, perchloric acid ( page 568)
water as an acid and a base
Water as an acid and a base
  • A substance is said to be amphoteric if it can behave either as an acid or as a base. Water is the most common.
  • Kw is the ion-product constant [H+] [OH-] = 1.0 x 10-14 = Kw at 25 degrees Celcius
  • In aqueous solution at 25 C, no matter what is contains, the product of [H+] and [OH-] must always equal 1.0 x 10-14
  • [ ] indicate the molarity
  • An acidic solution, where [H+]> [OH-]
  • A basic solution, where [OH-] > [H+]
  • A neutral solution, where [H+] = [OH-]
  • In each case, Kw = [H+] [OH-] = 1.0 x10-14
examples
Examples
  • Calculate [H+] or [OH-] as required for each of the following solutions at 25oC, and state whether the solution is neutral, acidic, or basic.
  • A. 1.0 x 10-5 M OH-
  • B. 1.0 x 10-7 M OH-
  • C. 10.0 M H+