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How will the changes in subject banding affect me?

How will the changes in subject banding affect me?

How will the changes in subject banding affect me? The Ministry of Education in Singapore has recently released an update announcing a change in the allocation of subject combinations for... Read More
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How will the 2027 Common Exam Replacing O and N Levels affect me?

How will the 2027 Common Exam Replacing O and N Levels affect me?

In 2027, the Ministry of Education in Singapore will replace the O and N Level examinations with a single common exam which occurs at the end of a student’s secondary... Read More
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How will the 2026 A Level Scoring Changes affect Chemistry students?

How will the 2026 A Level Scoring Changes affect Chemistry students?

In the coming years, Junior College students in Singapore will see major overhauls to the A Level scoring system, which will affect how A Level Chemistry students prepare for their... Read More
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Keeping Up with Focus Chemistry

Reaction Kinetics Part 4: Half Life – The Theory

Reaction Kinetics Part 4: Half Life – The Theory

The concept of half life is commonly used in A Levels H2 Chemistry syllabus.Many of us know that the half life of 1st order reaction is constant, but why is it constant?... Read More
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Stoichiometry IV : A levels H2 Chemistry 2008 Paper 1 Q2: Lord Rayleigh and his “Atmospheric Nitrogen”.

Stoichiometry IV : A levels H2 Chemistry 2008 Paper 1 Q2: Lord Rayleigh and his “Atmospheric Nitrogen”.

Recall from the calculation of relative atomic mass of chlorine : For a mixture of of 35Cl and 37Cl  isotopes in an abundance ratio of 3:1, RAM of Cl =  (3(35)+1(35))/(3+1)  =... Read More
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Reaction Kinetics Part 3: Pseudo Order Reactions

Reaction Kinetics Part 3: Pseudo Order Reactions

Click here to view Reaction Kinetics Part I: The Truth behind Rate Equations II In the determination of reaction orders and rate constant, one of the common used technique is... Read More
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Energetics and Thermodynamics Part II: How to Handle Unusual Questions?

Energetics and Thermodynamics Part II: How to Handle Unusual Questions?

Most of the question came out in the preliminary examinations or the A levels H2 Chemistry examinations usually involve standard definitions that most students are familiar with… such as enthalpy... Read More
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Reaction Kinetics Part 2: The Truth behind Rate Equations II

Reaction Kinetics Part 2: The Truth behind Rate Equations II

During the previous discussion on rate equations, one of the key points covered was the definition of rate in the rate equation.The term “rate” refers to instantaneous rate, rather than... Read More
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Reaction Kinetics Part I: The Truth behind Rate Equations

Reaction Kinetics Part I: The Truth behind Rate Equations

Many A Level students profess that they have not much problems with this chapter, as they can handle standard questions reasonably well. However, when one probes deeper into details, gaps... Read More
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Mystery of Prussian and Turnbull’s Blue Revealed (Part 2)

Mystery of Prussian and Turnbull’s Blue Revealed (Part 2)

Crystal Structure In Part 1 of the Prussian blue discussion, we noted that Prussian Blue (PB) : FeIII[FeII(CN)6] – (also known as ferric ferrocynanide)Turnbull’s Blue (TB) : FeII[FeIII(CN)6] – (also known as ferrous ferricyanide)... Read More
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Stoichiometry Part III: Tackling Redox Stoichiometry

Stoichiometry Part III: Tackling Redox Stoichiometry

A common type of question in A-level Chemistry Preliminary Exams is redox calculation questions. This type of question usually appears in Paper 1 (MCQ) which allows only 1.5 minutes to... Read More
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Chemical Equilibria Part II: The Truth Behind Le Chatelier’s Principle: Temperature effect

Chemical Equilibria Part II: The Truth Behind Le Chatelier’s Principle: Temperature effect

Click here to read Chemical Equilibria Part I: Tackling standard A Level / Prelims examination questions Le Chatelier’s Principle was first taught in secondary schools, and delved deeper in A... Read More
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