Limiting and excess reactants

This module explains how to identify the limiting reactant that controls product yield, calculate product mass, and find the amount of remaining unreacted excess reactant, a core exam stoichiometry skill for IB Chemistry HL.

📖Study Guide

In-depth bilingual notes with worked past paper examples.

✍️Practice Exam

Timed practice questions with mark scheme grading. Coming soon.

🎴Flashcards

Spaced repetition for key concepts and definitions. Coming soon.

📊Visualizer Coming Soon

Interactive plots and diagrams to build intuition. Coming soon.

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