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...
Alevel经济学：通货膨胀的原因是什么？
A-Level经济学Economics是A-Level最受学生欢迎的科目之一，但是很多学生认为A-Level经济学的学习难度较大、高分率低，“不选不行，选了痛苦”成为了很多选择A-Level经济学学生的写照。 今天带给大家Alevel经济笔记...
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...
A-level经济知识点讲解：国际收支的结构
作为管理、金融、会计学专业的基础，A-level经济一直是非常受欢迎的科目。众所周知A-level经济难度真的不小，今天我们就一起来看看国际收支的结构这个知识点。 国际收支平衡——国际收支的结构 对于许多Alevel学生...
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 ...
