_A2_2 Flashcards
Initial rate of reaction
The chance in concentration of a reactant, or product, Per unit time at the start of the reaction when t=0
Rate of reaction
The change in concentration of a reactant or product per unit time
Rate equation
For A+B ——–> C
Rate = k[A]^m. [B]^n
Half life
Of a reactant
The time taken for the concentration of the reactance to reduce by half
Rate determining step
The slowest step in the reaction mechanism of a multi step reaction
Dynamic equilibrium
In a CLOSED system
The rate of the forward reaction is equal to the rate of the reverse reaction
Homogeneous equilibrium
An equilibrium in which all the species making up the reactants and products are in the same physical state
Heterogeneous equilibrium
An equilibrium in which species making up the reactants and products are in different physical states
Bronsted Lowry
Acid
A proton donor
Bronsted Lowry
Base
A proton acceptor
Neutralisation
A chemical reaction in which an acid and a base react together to produce a salt a WATER
pH
-log[H+]
[H+]
10^-pH
Strong acid
An acid that completely dissociates in solution
Weak acid
An acid that partially dissociates in solution
