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),...
Br?nsted–Lowry Acid & Bases A?Br?nsted acid?is a species that can donate a proton For example, hydrogen chloride (HCl) is a Br?nsted 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官網更新，新增AP科目Pre-calculus（預備微積分）。該課程將于2023年秋季推出，2024年加入到AP考試中。 根據CB的說法，好多高中學生，高中時候數學基礎不好，進入大學后開始學習大學數學內容（主要為微積分）就...
