IB DP Chemistry: HL复习笔记18.1.2 pH Curves
pH Curves During a titration, a pH meter can be used and a pH curve plotted A pH curve is a graph showing how the pH of a solution changes as the acid (or base) is added The features of a pH curve ...
IB DP Chemistry: HL复习笔记18.1.1 Lewis Theory
Lewis Theory of Acids & Bases A more general definition of acids and bases was given by G.N. Lewis who defined them as: A Lewis acid is an electron pair acceptor A Lewis base is an electron pai...
IB DP Chemistry: HL复习笔记17.1.2 Gibbs Free Energy & the Equilibrium Constant
Gibbs Free Energy & the Equilibrium Constant Gibbs Free Energy & the Equilibrium Constant The equilibrium constant, Kc, gives no information about the individual rates of reaction It is ind...
IB DP Chemistry: HL复习笔记17.1.1 Applying the Equilibrium Law
Explaining Le Châtelier’s Principle Le Châtelier's principle Le Châtelier's principle says that if a change is made to a system at dynamic equilibrium, the position of the equilibrium moves to mini...
IB DP Chemistry: HL复习笔记16.2.3 Activation Energy from Rate Constants
Activation Energy from Rate Constants at Different Temperatures Arrhenius Plots Arrhenius plots for two reactions with different activation energies can be drawn on the same graph Arrhenius plots f...
IB DP Chemistry: HL复习笔记16.2.2 Graphing the Arrhenius Equation
Graphing the Arrhenius Equation Finding the Activation Energy Very often, the Arrhenius equation is used to calculate the activation energy of a reaction A question will either give sufficient info...
IB DP Chemistry: HL复习笔记16.2.1 The Arrhenius Equation
The Arrhenius Equation The rate equation shows how each of the reactants in a reaction effects the rate of the reaction and it includes the rate constant, k However, k only remains constant if the ...
IB DP Chemistry: HL复习笔记16.1.5 Mechanism Problems
Mechanism Problems Chemical kinetics can only suggest a reaction mechanism, they cannot prove it However, they can be used to disprove a proposed mechanism Elementary steps are the steps involved i...
IB DP Chemistry: HL复习笔记16.1.4 Rate Determining Step
Molecularity & Rate Determining Step Rate-determining step & intermediates A chemical reaction can only go as fast as the slowest part of the reaction So, the rate-determining step is the s...
