8. factors affecting acid/base strength

1

• 8. factors affecting acid/base strength
• binary acids
• of the same group
• AH bond strength the stronger the bond the
  weaker the acid
• of the same row
• A electronegativity the more electronegative A
  is, the greater the acid strength of HA

2

• 8. factors affecting acid/base strength
• oxoacids HnYOm the acidic hydrogens are bound
  to the oxygen atoms which are in turn bound to Y
• examples, with Lewis structures HNO3, H2SO4,
  HClO3
• oxoacids with equal numbers of O and OH groups
  acid strength increases with electronegativity of
  Y
• HClOgtHBrOgtHIO
• oxoacids with same Y but different numbers of O
  atoms acid strength increases with number of O
  atoms
• H2SO4gtH2SO3