8.4: Strong and weak acids and bases
What is an example of a strong acid?
A strong acids is HCL
What are some weak acids?
CH3COOH H2CO3 H3PO4
distinguish between strong and weak acids and bases
Elecrical conductivity: -Strong acids and strong bases will therefore show higher conductivity than weak acids and bases Rate of reaction: -Stronger acids, that have a greater H+ ions have a stronger rate pH: - The higher the H+ concentration, the lower the pH value. This can shows the strenghts of the acids
Name some strong acids
HCL: Hydrochlorid acid HNO3: Nitric acid H2SO4: Sulfuric acid
What are some strong bases?
LiOH NaOH KOH Ba(OH)2
What are som weak bases?
NH3 C2N5NH2
How do strong and weak acids differ?
Strong acids dissociate completely in aqueous solution and weak acids don't. And they differ in the extent of ionization
What are the characteristic of a strong acid
Strong acods dissociates fully, it will exist entirely as ions in solution. They are good proton donors
What are the characteristic of a weak acid?
The acid dissociates only partially, it produces an equilibrium mixture in which the undissociated form dominates. This is said to be weak acid They are good proton acceptors Also based on their ionization, NAOH is a strong base because it ionizes fully
What type of bases are more common?
weak acids and bases are much more commom than strong acids and bases