1 of 8

Slide Notes

DownloadGo Live

Acids And Bases

Published on Nov 25, 2015

No Description

PRESENTATION OUTLINE

COMPOUNDS/ACIDS/BASES

  • Gases
  • Salts
  • Metals
  • Ions
  • Molecules

ACIDS/BASIS

  • Water solutions

HISTORY OF ACID-BASE CHEMISTRY

  • New and different solutions could form when mixing solutions in water
  • "Sour " taste (acids)

BASES

  • Made from ashes of dried plants
  • When ash solutions mix with acids the sour taste gets cancelled
  • Substances derived from the ashes are called bases
  • Bases can cancel out

MOLECULES & IONS IN ACIDS & BASES

  • Common ion in acids: H+
  • Common ion in bases: OH–
  • When an acid reacts with a base:
  • H+ + OH- = H2O

H+ + OH- = H2O

  • Represents the neutralization
  • Arrhenius definition is:
  • An acid will form H+ ions while a base will yield OH- ions.

NON-AQUEOUS

  • Lowry and Bronsted:
  • Acid: a substance whose molecule or ion can give up a proton.
  • Base: substance which can combine with a proton
  • Acid=proton doner
  • Base=proton acceptor

ACID AS A PROTON DONOR

  • HCL + H2O = H3O+ + Cl-
  • HCL= Acid (proton donor)
  • H2O= Base (proton acceptor)