About Course
✔ Lifetime access ✔ 5+ hours video lessons ✔ Full A/L syllabus coverage
✔ Theory + Problems + Exam questions ✔ Sinhala medium
This course provides a complete step-by-step explanation of the Solubility Product (Ksp) for A/L Chemistry in the Sinhala medium.
Solubility equilibrium is an important part of ionic equilibrium and analytical chemistry in the A/L Chemistry syllabus. Many students struggle with writing Ksp expressions, the common ion effect, precipitation conditions, and numerical calculations.
This masterclass is designed to help you clearly understand the concepts, confidently solve problems, and answer exam questions correctly.
In this masterclass, you will learn
✔ Concept of solubility equilibrium
✔ Solubility product constant (Ksp)
✔ Writing correct Ksp expressions for sparingly soluble salts
✔ Relationship between Ksp and molar solubility
✔ Calculating solubility from Ksp
✔ Calculating Ksp from solubility data
✔ Common ion effect in solubility equilibria
✔ Predicting precipitation using ionic product (Q)
✔ Applications of solubility equilibria in salt analysis
✔ Numerical problem-solving techniques
✔ Structured and essay question discussions
This course is ideal for
• A/L 2026 students
• A/L 2027 students
• Students repeating A/L exam
• Students aiming for A or B grades
Resources Included
✔ Complete video lesson series
✔ Numerical problem-solving sessions
✔ Exam-style questions and discussions
✔ Printed notebook provided for the course
✔ Lifetime access
Course Duration
5+ hours of video lessons
Why this course is important
Many A/L students memorize solubility product formulas without understanding the equilibrium concepts behind them.
Because of this, they struggle when applying the theory to numerical problems and exam questions.
This leads to:
• Difficulty writing correct Ksp expressions
• Mistakes when calculating molar solubility
• Confusion when solving common ion effect problems
• Errors when predicting whether precipitation will occur
• Losing marks in structured and essay questions involving ionic equilibrium
• Fear of numerical problems related to Ksp
In this course, every concept is explained step-by-step from basic to advanced level, so you can confidently solve any solubility equilibrium question in the exam.
If you attended a physical tuition class covering the full Solubility Product lesson, it would cost more than Rs 10,000 – Rs 15,000.
Get lifetime access with a one-time payment and revise the lesson anytime before the exam.
Course Content
Day – 01
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01. විද්යුත් විච්ඡේද්ය සහ ජල ද්රාව්යතාව
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02. ජලයේ මඳ වශයෙන් ද්රාව්ය ප්රබල විද්යුත් විච්ඡේද්යයක් ජලයේ දිය වීම
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03. ද්රාව්යතා ගුණිතය
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Assignment 01 – Q1 Answer
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Assignment 01 – Q2 Answer
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Assignment 01 – Q3 (i) Answer
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Assignment 01 – Q3 (ii) Answer
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Assignment 01 – Q3 (iii) Answer
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Assignment 01 – Q3 (iv) Answer
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Assignment 01 – Q3 (v) Answer
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Assignment 01 – Q4 (i) Answer
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Assignment 01 – Q4 (ii) Answer
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Assignment 01 – Q5 (i) Answer
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Assignment 01 – Q5 (ii) Answer