Acid Dissociation Constant Weak acids A weak acid is an acid that partially (or incompletely) dissociates in aqueous solutions Eg. most organic acids (ethanoic acid), HCN (hydrocyanic acid),...
Brønsted–Lowry Acid & Bases A Brønsted acid is a species that can donate a proton For example, hydrogen chloride (HCl) is a Brønsted acid as it can lose a proton to form a hydrogen (H+) ...
Representing Cells Electrochemical cells generate electricity from spontaneous redox reactions For example: Zn (s) + CuSO4 (aq)→ Cu (s) + ZnSO4 (aq) Instead of electrons being transferred ...
Kp Expressions We have seen previously that equilibrium reactions can be quantified by reference to an equilibrium expression and equilibrium constant The equilibrium expression links the eq...
Rate Equations The rate of reaction refers to the change in the amount or concentration of a reactant OR product per unit time It can be found by: Measuring the decrease in the concentration...
Defining Thermodynamic Terms Thermodynamics literally means heat and movement and is the branch of physical chemistry that deals with heat, energy, temperature and the physical properties of...
Reactions of Group 2 Elements Although there is no required practical specifically based around the reactions of Group 2 elements, these reactions are important and students tend to not do v...
Making a Volumetric Solution REQUIRED PRACTICAL 1 Volumetric Analysis Volumetric analysis is a process that uses the volume and concentration of one chemical reactant (a volumetric solution)...
CB官网更新，新增AP科目Pre-calculus（预备微积分）。该课程将于2023年秋季推出，2024年加入到AP考试中。 根据CB的说法，好多高中学生，高中时候数学基础不好，进入大学后开始学习大学数学内容（主要为微积分）就...
