Acid-base Reactions 1 Flashcards
(11 cards)
What is a Bronsted Lowry acid ?
Proton donor
What is a Bronsted Lowry base ?
Proton acceptor
What are the features of dynamic equilibrium?
- Rate of forward and backward reactions occur at equal rates
- The concentrations of products and reactants remains constant
Show the law of mass action
A + B = C + D
Kc = [C][D]/[A][B]
Kc is the equilibrium constant
What does Kc change with ?
Temperature only
What does Le Chatelier principle state ?
When a stress is imposed on an equilibrium, the reaction will shift to relive the stress
Effect of pressure on equilibrium
Increase in pressure will cause equilibrium to shift towards the side with fewest moles of gas to oppose the change
Effect of temperature on equilibrium
If temperature is increased, equilibrium will shift towards oppose this and move in the endothermic direction
Name some acid-base pairs
- NH4+ = NH3
- CH3COOH = CH3COO-
- HCL = Cl-
- H3O+ = H20
- H20 = OH-
How to calculate PH ?
PH = -log[H+]
What is the ionic product of water ?
Kw = [H+][OH-]
