LESSON OBJECTIVE: Understand how to measure the standard electrode potentials of a half-cell relative to the standard hydrogen electrode.
Learning Outcomes:
(taken from the Cambridge International AS and A Level Chemistry curriculum)
24.2 Standard electrode potentials E⦵; standard cell potentials E⦵cell and the Nernst equation
2 describe the standard hydrogen electrode
3 describe methods used to measure the standard electrode potentials of:
(a) metals or non-metals in contact with their ions in aqueous solution
(b) ions of the same element in different oxidation states
LESSON OBJECTIVE: Investigate reaction spontaneity by linking the concepts ΔG⦵ and E⦵cell
Learning Outcomes:
(taken from the Cambridge International AS and A Level Chemistry curriculum)
24.2 Standard electrode potentials E⦵; standard cell potentials E⦵cell and the Nernst equation
10 understand and use the equation ΔG⦵ = –nE⦵cellF
LESSON OBJECTIVE: Investigate the concept of electrode potential and describe galvanic cells.
Learning Outcomes:
(taken from the Cambridge International AS and A Level Chemistry curriculum)
24.2 Standard electrode potentials E⦵; standard cell potentials E⦵cell and the Nernst equation
1 define the terms:
(a) standard electrode (reduction) potential
(b) standard cell potential
LESSON OBJECTIVE: Investigate pH, Kw, Ka, pKa and how to utilise them in calculations.
Learning Outcomes:
(taken from the Cambridge International AS and A Level Chemistry curriculum)
25.1 Acids and bases
1 understand and use the terms conjugate acid and conjugate base
2 define conjugate acid-base pairs, identifying such pairs in reactions
3 define mathematically the terms pH, Ka pKa and Kw and use them in calculations (Kb and the equation Kw = Ka × Kb will not be tested)
LESSON OBJECTIVE: Understand and apply the concepts of solubility products, Ksp, the common ion effect and partition coefficients, Kpc, to a system at equilibrium
Learning Outcomes:
(taken from the Cambridge International AS and A Level Chemistry curriculum)
25.1 Acids and bases
7 understand and use the term solubility product, Ksp
8 write an expression for Ksp
9 calculate Ksp from concentrations and vice versa
10 a) understand and use the common ion effect to explain the different solubility of a compound in a solution containing a common ion
b) perform calculations using Ksp values and concentration of a common ion
25.2 Partition coefficients
1 state what is meant by the term partition coefficient, Kpc
2 calculate and use a partition coefficient for a system in which the solute is in the same physical state in the two solvents
3 understand the factors affecting the numerical value of a partition coefficient in terms of the polarities of the solute and the solvents used
LESSON OBJECTIVE: Understand pH changes in acid-base titrations and how to select an appropriate indicator for certain reactions.
Learning Outcomes:
(taken from the Cambridge International AS and A Level Chemistry curriculum)
7.2 Brønsted-Lowry theory of acids and bases
9 sketch the pH titration curves of titrations using combinations of strong and weak acids with strong and weak alkalis
10 select suitable indicators for acid-alkali titrations, given appropriate data (pKa values will not be used)
25.1 Acids and bases
4 calculate [H+(aq)] and pH values for:
a) strong acids
b) strong alkalis
c) weak acids
LESSON OBJECTIVE: Describe how buffer solutions regulate pH, calculate buffer solution pH and investigate their applications.
Learning Outcomes:
(taken from the Cambridge International AS and A Level Chemistry curriculum)
25.1 Acids and bases
5 a) define a buffer solution
b) explain how a buffer solution can be made
c) explain how buffer solutions control pH; use chemical equations in these explanations
d) describe and explain the use of buffer solutions, including the role of HCO3- in controlling pH in blood
6 calculate the pH of buffer solutions, given appropriate data
Save 50% when lessons bought as a part of this bundle
Four lessons consisting of a unit on equilibria, adressing CIE learning outcomes. Each lesson consists of lesson slides and student led tasks.
Consists of the following lessons:
pH and the Acid Dissociation Constant
Indicators and Acid-Base Titrations
Buffer Solutions
Solubility Products, the Common Ion Effect and Partition Coefficients
Save 50% when lessons bought as a part of this bundle.
Six lessons consisting of a unit on chemical energetics, addressing CIE learning outcomes. Each lesson consists of lesson slides and student led tasks.
Consists of the following lessons:
1) Lattice Energy and Born-Haber Cycles
2) Enthalpies of Solution and Hydration
3) An Introduction to Entropy
4) Entropy Changes
5) Calculating Changes in Entropy
6) Gibbs Free Energy
Save 50% when lessons bought as a part of this bundle.
Seven lessons consisting of a unit on electrochemistry, addressing CIE learning outcomes. Each lesson consists of lesson slides and student led tasks.
Consists of the following lessons:
An Overview of Electrolysis
Quantitative Electrolysis
An Introduction to Electrode Potentials
Measuring Standard Electrode Potentials
Calculating Standard Cell Potentials
The Nernst Equation, Concentration and Cell Potential
Spontaneity, Gibbs Free Energy and Cell Potential