Stoichiometry & Quantitative Chemistry (Zero to Pro Level)

Course Overview

The Stoichiometry & Quantitative Chemistry (Zero to Pro Level) course gives learners a clear, exam-focused mastery of the calculations that dominate IGCSE and O Level Chemistry—from moles, molar mass, and molar volume to percentage composition, empirical formula, and molecular formula. This course is designed for students who want strong concept clarity, fast calculation speed, and the ability to solve both structured and multi-step exam questions confidently.

Using structured explanations, step-by-step worked examples, exam tips, interactive quizzes, and high-quality LearnStalk explainer videos, learners will build mark-scheme-ready working, avoid common mistakes, and develop the habit of checking answers like a top student. Whether you are revising for finals, preparing for mocks, or strengthening your foundation for advanced chemistry, this course guides you from the basics to high-confidence exam performance.

What You Will Learn

• Calculate the molar mass (Mr) of compounds accurately, including those with brackets and complex formulas.
• Convert between moles and mass using n = m/Mr and rearrange confidently under exam time pressure.
• Calculate the molar volume of gases and solve gas questions using the correct exam constants (e.g., 24 dm³ mol⁻¹ at room temperature and pressure where applicable).
• Find percentage composition of elements in compounds and apply it to real exam-style problems.
• Calculate the empirical formula from given mass/percentage data using a reliable, repeatable method.
• Determine the empirical formula from mass data by converting masses to moles and simplifying to the smallest whole-number ratio.
• Find the molecular formula using n = Mr ÷ empirical formula mass and avoid common examiner traps.

Why This Course Matters
Many learners lose easy marks in quantitative chemistry because they memorize formulas without understanding the logic behind the steps—or they skip units and working. In IGCSE/O Level exams, stoichiometry questions are designed to test whether you can translate information into a method, keep track of units, and complete multi-step calculations accurately. This course fixes that by teaching you a repeatable exam workflow—identify what is given, choose the correct relationship, show clean working, and verify answers using quick checks—so your solutions become fast, correct, and examiner-friendly.

Course Features

• High-quality LearnStalk explainer videos aligned to IGCSE/O Level outcomes
• Interactive quizzes and exam-style MCQs to build speed and accuracy
• Rich concept explanations with worked examples and step-by-step exam methods
• Exam tips and common errors sections to prevent lost marks
• Audio recaps for fast revision and reinforcement
• Flashcards for rapid recall of formulas, steps, and key definitions
• Discussion prompts to fix misconceptions and improve exam technique

Who Is This Course For?

• IGCSE and O Level learners aiming for A–C grades through stronger understanding and consistent exam practice.
• Students who struggle with mole calculations, unit conversions, or multi-step quantitative questions.
• Learners who want a revision-friendly course with quizzes, flashcards, and audio recaps.
• Any student preparing for mocks, finals, or entry into higher-level chemistry.

Course Price
$15 – Full Access