Unit 8: Acids and Bases Flashcards
(20 cards)
Neutralization reactions
occur when an acid donates its proton to a base.
weak acids
Indicators are that change colors based on pH change.
Strong acids
will dissolve completely in water and never reach equilibrium.
1x10^-14
value of Kw constant
14
pH + pOH =
1x10^-14
[H+][OH-] =
buffer
A(n) is a solution with a stable pH.
Polyprotic acids
can give up more than one hydrogen in a solution.
Bases
do not dissociate but accepts protons.
equivalence point
When just enough acid/base is added to an acid/base to neutralize
half-equivalence point
when exactly half the amount of acid/base is turned into its conjugate in a titration
pH
Increasing means decreasing [H+] and making a solution less acidic.
Greater Ka value
means more acid dissociation (stronger acid)
Greater Kb value
means more protonatization (stronger base)
Complete dissociation, only hydrogen and hydroxide ions remail
Strong acid and strong base reaction
Proton is donated, conjugate of base is created
Strong acid and weak base reaction
Protons accepted, created conjugate of acid and water
Weak acid and strong base
Simple proton transfer
Weak acid and weak base reaction
Ka
equilibrium constant for weak acids
Kb
equilibrium constant for weak bases