Learning Outcomes

Basic Concepts of Water Chemistry

Alkalinity and Treatment of Hard Water

Water Treatment and Purification Processes

Lesson Summary

In this module, you will be introduced to the properties of water, you will learn about alkalinity and the treatment of water hardness, and you will also learn the water treatment and purification processes as well as the chemical processes of water treatment.

Inorganic Chemicals and Organic Compounds

Metals and Metalloids

Laboratory Safety and Chemical Hygiene Plan

In this module, you will learn about inorganic chemicals and organic compounds, as well as how to reduce your exposure to VOCs and SOCs. discover the effects of heavy metals, and pollution control measures, and learn how to recognize and manage hazards and laboratory safety precautions.

Water Treatment and Purification - Course assessment

Learn how the principles of water chemistry drive its treatment and purification processes in this free online course.

Water Treatment and Purification

They say that ‘water is life’. It is one the most important compounds on Earth and consists of two chemical elements: hydrogen and oxygen. However, it is important to check and maintain water purity to protect health and the environment. This course explores water’s hygiene and other qualities and compares ‘hard’ and ‘soft’ water. We then conduct a chemical analysis of major and minor ions and explain laboratory hazard management.

Understanding the Basics of HPLC

Historical Development of HPLC

Advantages and Applications of HPLC

HPLC Components and Principles of Operation

Principles of Separation, Mobile and Stationary Phase Interactions

Types of HPLC

Elution Types

In this module, you will be introduced to the sophisticated analytical technique of HPLC. First, we will define HPLC in ways you will understand. Secondly, you will learn the historical development and importance of HPLC. Then, we will walk you through the applications of HPLC in pharmaceuticals, food, and environmental analysis.

Setting Up the HPLC System

HPLC Sample and Mobile Phase Preparation

Running an HPLC Analysis

In this module, you will learn how to operate High-Performance Liquid Chromatography. We will start by walking you through the setup of an HPLC system so that you can be familiar with the components. Then, you learn how to prepare your sample for analysis, after which you will learn how to start and complete a full run analysis on the HPLC system.

Introduction to HPLC Troubleshooting

Common Problems in HPLC

Developing a Troubleshooting Strategy

In this module, you will learn how to troubleshoot HPLC systems. First, you will be introduced to common HPLC problems like baseline noise, pressure fluctuations, ghost peaks, and sample carryover. Then, we will teach you how to apply systematic troubleshooting techniques to resolve issues related to the mobile phase, column clogging, and detector.

Routine and Preventive Maintenance

Cleaning of HPLC System

Best Practices for Long-term HPLC Performance

In this module, you will learn how to maintain HPLC systems. First, you will learn routine preventive maintenance of the HPLC system which involves 1. Column care: Regeneration, storage, and replacement. 2. Cleaning the injector, pump, and detector components. Then, you will learn best practices to adopt to protect the shelf-life of HPLC system.

Mastering HPLC - Operation, Troubleshooting and Maintenance - Course Assessment

Command respect and become an expert in HPLC operation, troubleshooting and maintenance in this free online course.

Mastering HPLC: Operation, Troubleshooting, and Maintenance

This course provides a comprehensive introduction to High-Performance Liquid Chromatography (HPLC), covering its operation, key components, and practical usage in laboratory settings. It will equip you with the skills to troubleshoot common issues and maintain the equipment for optimal performance, making it the best choice for professionals and students in analytical chemistry, pharmaceuticals, foods, and related fields.

Features and Cost of Corrosion

Process of Material Degradation

Types and Forms of Corrosion

Uniform and Galvanic Corrosion

Crevice and Pitting Corrosion

In this module, you will be introduced to the concept of corrosion, as well as the various processes that can cause corrosion. You will also be introduced to the different types of corrosion which are uniform, galvanic, crevice, and pitting corrosion, as well as the impact of each type of corrosion.

Forms of Corrosion with Examples

Electrochemical Nature of Corrosion

Thermodynamics Aspects of Corrosion

Free Energy in Corrosion

Relationship Between Delta G and Equilibrium Constant

In this module, you will be introduced to the different forms of corrosion, as well as the electrochemical nature of corrosion and its thermodynamics. You will also be introduced to the thermodynamics aspects of corrosion, the concept of free energy change, as well as the process of entropy change.

Relation Between Free Energy and Equilibrium Constant

Derivation of Nernst Equation

Standard Reduction Potential Series for Pure Metals

Reduction Potentials in Acidic and Neutral Solutions

Nernst Equation in terms of pH

In this module, you will be introduced to the relationship between free energy and the equilibrium constant, as well as how the Nernst equation can be derived for a reaction. You will also be introduced to the standard reduction potential series for pure metals, as well as the reduction potentials in acidic and neutral solutions.

Limitations of Standard Reduction Potential Series of Pure Metals

Concentration Cell Formation and Galvanic Series

Examples of Concentration Cell and Spontaneity of Corrosion Process

Spontaneity of Corrosion Process and Introduction to Pourbaix Diagram

Construction of Pourbaix Diagram

In this module, you will be introduced to the various limitations of standard reduction potential series of pure metals, as well as the concept of concentration cell formation. You will also be introduced to the galvanic series, some examples of concentration cells, as well as the spontaneity of the corrosion process and Pourbaix diagrams.

Diploma in Electrochemistry of Corrosion - First Assessment

Construction of Pourbaix Diagram for Ni-H2O System

Analyzing the Pourbaix Diagram for Ni-H2O System

Stability Phases in the Pourbaix Diagram for Ni-H2O System

Pourbaix Diagram for Ni-H2O and Al-H2O

Inference From Pourbaix Diagram for Fe-H2O and Al-H2O

In this module, you will be introduced to the construction of the Pourbaix diagram for a Ni-H2O system, as well as happens when the pH concentration of the H+ ion increases. You will also be introduced to the positions where the acidic reactions and basic reactions will happen, as well as the schematic phase diagram for aluminium.

Estimation of Corrosion Rate

Expressing Corrosion Rate

Correlation Between Current Flow and Corrosion

Exchange Current Density

Exchange Current Density and Standard Hydrogen Electrode

In this module, you will be introduced to the steps used in the estimation of corrosion rate, as well as kinetics or rate of corrosion and the rate of dissolution of metal. You will also be introduced to the steps for calculating the corrosion rate in the form of mass loss per area per unit time.

Electrode Double Layer and Polarization

Correlation Between Current Density and Overvoltage

Introduction to Butler-Volmer Equation

Derivation of Tafel Equation

Tafel Plot and Activation Polarization

In this module, you will be introduced to the concept of the electrode double layer, as well as the different types of polarization and the correlation between current density and overvoltage. You will also be introduced to the derivation of the Butler-Volmer equation, as well as how the Tafel equation is derived.

Activation Polarization, Concentration Polarization, and Total Polarization

Summary of Concentration Polarization (CP)

Mixed Potential Theory

Drawing the Evans Diagram

Changes in Corrosion Rate

Examples Showing the Mixed Potential Theory

In this module, you will be introduced to the concepts of activation polarization and concentration polarization, as well as total polarization. You will also be introduced to the derivation of the mixed potential theory, as well as some case studies that highlight the mixed potential theory and the events of corrosion.

Diploma in Electrochemistry of Corrosion - Second Assessment

Diploma in Electrochemistry of Corrosion - Course Assessment

A free online course on the electrochemical nature of corrosion, as well as the thermodynamics aspect of corrosion.

Diploma in Electrochemistry of Corrosion

This free online course on the electrochemistry of corrosion teaches you about the processes that can cause corrosion, as well as the impact of different forms of corrosion and how to derive the important Nernst equation. You will learn about the steps for constructing a Pourbaix diagram and be able to explain the relevance of the mixed potential theory.

Nitrogen and Nitrogen Compounds

Preparation of Ammonia in the Laboratory

Sulfur Physical Properties and Manufacture

This module discusses Nitrogen (N), the most abundant element in group 15, and Sulfur, a bright yellow element in group 16. You will learn about their properties and the environmental impact of nitrogen compounds, sulfur oxides, and acid rain.

Transition Elements and Their Properties

Redox Reactions & Coordination Bonds Formation

Stereoisomerism of Transition Element Complexes

Substitution of Ligands

Colour of Transition Metal Complexes

This module covers transition elements, the formation of coordination bonds and various coordination complex structures, the stereoisomerism of transition element complexes, and the substitution of water molecules with other ligands, among other related subjects.

Intermediate Chemistry: Nitrogen, Transition Elements & Metal Complexes: Course Assessment

This free online chemistry course covers the properties and uses of nitrogen, sulfur, and transition elements.

Intermediate Chemistry: Nitrogen, Transition Elements and Metal Complexes

Nitrogen gas is an inert (non-flammable) gas representing almost 78% of atmospheric air. This course teaches you about nitrogen, its reaction with hydrogen to produce ammonia, and the effects of its compounds on the environment. Then, we explore sulfur's physical properties and the production of sulfuric acid. The transition elements, their properties, redox reactions, and stereoisomerism of their complexes are also discussed.

Paper Chromatography

Thin-Layer & High-Performance Liquid Chromatography

Gas-Liquid Chromatography

This module investigates different chromatography techniques, each with its specific applications. Along with other methods, you'll learn about paper chromatography, two-way chromatography, thin-layer chromatography, and their underlying separation principles.

Nuclear Magnetic Resonance (NMR)

Types of 1H-NMR

Carbon-13 NMR Spectroscopy

In this module, we explore a powerful spectrometry analytical technique known as nuclear magnetic resonance (NMR) and the properties that NMR studies. Carbon-13 NMR spectroscopy, proton (1H) nuclear magnetic resonance and the two types of 1H-NMR: low- and high-resolution NMR are also explained.

Mass Spectrometry

High-Resolution Mass Spectrometry

A Mass Spectrometer as a Combined Technique

This module discusses the mass spectrometer, a powerful tool for determining isotope abundance. We describe the steps of mass spectrometry sample analysis and low- and high-resolution mass spectrometry techniques. You'll discover how mass spectrometers can be used in tandem with other methods to identify organic compounds.

Introduction to Designing Medicinal Drugs

Chirality in Pharmaceutical Synthesis

Increasing the Number of Carbons in a Compound

This module covers medicinal drug design and chirality in pharmaceutical synthesis. We investigate molecular modelling, utilised successfully in the development of cancer treatments and HIV therapy. You'll also learn about chiral carbon, enantiomers, pure enantiomer preparation methods, and retrosynthesis stages.

Advanced Chemistry: Analytical Chemistry and Organic Synthesis - Course Assessment

This free online science course explains how to detect and identify chemical substances and discusses drug design.

Advanced Chemistry: Analytical Chemistry and Organic Synthesis

There are many techniques used to detect and identify chemical substances. This advanced chemistry course describes specialised instruments used in analytical chemistry, such as gas-liquid chromatography, nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry. We also look into various methods used to design pharmaceuticals, including molecular modelling and X-ray crystallography, and explain how to prepare pure enantiomers.

Gene Delivery with Vectors

Gene Delivery with Polymers

Genes as Vaccines

Immunization

Cancer Vaccines

Immunotherapy

In this module, Gene Delivery and Other Variants, you will learn the fundamentals of Gene Delivery with vectors as well as Polymers. You will also learn how genes can be used as vaccines and how Cancer Vaccines and Immunotherapy are created and used.

Responsive Delivery Systems

Sensitive Hydrogels

Targeted Drug Delivery

Research Paper Discussion

Nanotoxicology

In this module, Responsive and Targeted Delivery Systems, you will learn about Stimuli-Sensitive and Smart Systems and how certain systems can be controlled magnetically. You will also learn the fundamentals of Sensitive Hydrogels and how temperature can create certain responses. Finally, you will be introduced to the Nanotoxicology and Translation Pathways.

Final Course Assessment

Can genes be designed and engineered for both drug delivery systems and vaccines? This course shows what is possible.

Genes and Responsive Drug Delivery Systems

In this free online course, you will discuss genes as both delivery systems and as vaccines. Analyze the responsive and targeted drug delivery systems as the different forms of stimulation for activation. This course is for those who have a passion for studying biochemistry and immunology.

Recap of Electrochemical Polarization

Activation and Concentration Polarization

Tafel Equation and Tafel Slope

Exchange Current Density in Anodic and Cathodic Polarization

Interaction between Concentration Polarization and Mixed Potential Theory

In this module, you will be introduced to the two important aspects of electrochemical reactions, as well as their interactions with mixed potential theory. You will also be introduced to the concepts of Tafel equation, cathodic and anodic reactions, as well as how to plot appropriate graphs representing the reactions and the formation of the Helmholtz double-layer.

Introduction to Corrosion Processes based on Mixed Potential Theory

Evolution of Microstructure and Optical Microscope

Depolarization Effect

Equilibrium Potentials

Exchange Current Density and Galvanic Contacts

In this module, you will be introduced to the evolution of microstructure in pearlite, the concept of an optical microscope, as well as their formation. You will also be introduced to the concepts of etching, equilibrium potentials, corrosion processes, galvanic coupling and depolarization effects.

Effect of Exchange Current Density on Corrosion Rate of an Active Metal

Area Effect of the Cathodic and Anodic Component

Area Effect on the Current and Corrosion Rate

Corrosion Processes on the basis of Mixed Potential Theory: Numerical Analysis

Galvanic Coupling between Two Active Metals

In this module, you will be introduced to the different values of half-cell, anodic and cathodic reactions, as well as the parallel line of individual Tafel lines for hydrogen evolution reaction on zinc and platinum. You will also be introduced to the area effect on the corrosion of an active component, as well as the galvanic coupling between two active metals in an electrolyte.

Theory of Sacrificial Anode Steel Objects Protection

Effect of Two Active Metals on Fe–Corrosion

Corrosion of Metals in Controlled Concentration

Effect of Velocity on Corrosion Rate

Numerical Analysis in Polarization

In this module, you will be introduced to the two segments of cathodic protection which are the sacrificial anode and impressed current cathodic protection, as well as the effect of magnesium and zinc on iron corrosion when they are galvanically coupled. You will also be introduced to how corrosion current density can be affected in both activation, as well as concentration controlled environment. The relationship between velocity and corrosion rate will also be highlighted in this module.

Diploma in Electrochemical Reactions in Corrosion  - First Assessment

Numerical Problems and Passivation

Theory of Passivation

Features and Elements of Passivation

Interaction between Passivation and Pourbaix Diagram

Changes in Current Density

In this module, you will be introduced to the features, elements and types of passivation, as well as the interaction between polarization and the Pourbaix diagram. You will also be introduced to Faraday's two-staged experiment on converting iron with HNO3 solution from the passive to the active stage, as well as the ennoblement of metal in relation to passivity.

Passivity in Mixed Potential Theory

Interaction of Cathodic Polarization with an Active-Passive Metal

Interaction of Anodic Polarization with an Active-Passive Metal

Passivation and Mixed Potential Theory - Case Study

The Effect of Concentration Polarization of Cathodic Reaction

In this module, you will be introduced to the interaction of cathodic and anodic polarization plots for a system in passivation mode, as well as the effect of the interaction of cathodic polarization at different plots. You will also be introduced to the different criteria for stable passivity, complete passivity and primary passivity in relation to the anodic and cathodic polarization line.

Effect of Galvanic Coupling

Anodic Protection of an Active-Passive Metal

Linear Polarization and Relative Corrosion Resistance

Oxidation of Metals and Alloys

Different Stages of Oxidation and Pilling-Bedworth Ratio

In this module, you will be introduced to the anodic protection of active-passive metal due to the lesser current flow in the circuit for the same degree of protection, as well as the relative corrosion response of a metal in an electrolyte. You will also be introduced to the different stages of oxidation, as well as how metals react with gaseous oxygen to form metal oxides.

Pilling Bedworth Ratio of different Metal Oxides

Thermodynamics of Oxidation

Construction of Ellingham Diagram

Ellingham Diagram - Plotting Without Detailed Calculation

Kinetics of Oxidation

Oxide Structure and Oxidation Mechanism

In this module, you will be introduced to the calculation of the Pilling-Bedworth Ratio in different metals, as well as the fundamental aspects of oxidation which are thermodynamics of oxide formation and kinetic analysis of oxide growth. You will also be introduced to the plotting of the Ellingham diagram, as well as how the oxidation process occurs in metal deficient diffusion of the interstitial cation.

Diploma in Electrochemical Reactions in Corrosion  - Second Assessment

Diploma in Electrochemical Reactions of Corrosion  -- Course Assessment

Study electrochemical reactions in corrosion, as well as the oxidation mechanisms of corrosion, in this free course.

Diploma in Electrochemical Reactions in Corrosion

Two important aspects of electrochemical reactions are covered in this free online course. You will learn about the features and elements of passivation, as well as the interaction between polarization and the Pourbaix diagram. You will also be able to explain the calculation of Pilling-Bedworth ratio in different metals, as well as plot the Ellingham diagram. Start this course today to improve your understanding of electrochemical reactions.

Polyketide Biosynthesis

Biosynthesis of Macrolide Polyketides and Introduction to Virus

In this module, you will learn about the biosynthesis of polyketide and the biosynthesis of macrolide polyketide. You will also learn about viruses, different types of viruses, cancer and chemotherapy. This will also include anti-cancer drugs.

Learn about biosynthesis and anti-ulcer drugs in drug development with this free online diploma course.

Diploma in Drug Development

This free online drug looks specifically at polyketide biosynthesis and anti-ulcer drugs as well as the role of organic chemistry in drug development. You will also learn about secondary metabolites, viruses, anti-viral drugs, pharmacokinetics, pharmacodynamics and QSAR (quantitative structure-activity relationship) principles. This course will be helpful to budding chemists, biochemists and chemical biologists.