Mole Concept: Gas Laws, Molar Volume and Avogadro's Number

Chemistry (Science Paper 2) · Chapter 5 · 5. Mole Concept and Stoichiometry

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Visual lesson Beta
1. Part 1: Gas volume laws14 slides
2. Part 2: The mole, molar volume and vapour density15 slides
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Notes Beta
6 sections with key terms, formulas and exam tips.
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Flashcards Beta
30 cards for quick recall of key terms and facts.
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Practice
70 board-style questions with instant checks: Multiple choice 20, Short answer 20, Numerical 10, Assertion and reason 5.
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Chapter test Free
Short and long chapter tests in board pattern, with results and analysis.
- Chapter test (long) — Mole Concept: Gas Laws, Molar Volume and Avogadro's Number · 40 marks · 60 min
- Chapter test (short) — Mole Concept: Gas Laws, Molar Volume and Avogadro's Number · 20 marks · 30 min
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Gay-Lussac's law of combining volumes: statement, explanation and calculations
Avogadro's law; atomicity of hydrogen, oxygen, nitrogen and chlorine from the formation of HCl, NH3 and NO
The mole as a counting unit; Avogadro's number; gram atomic mass and gram molecular mass
Molar volume: 22.4 litres of any gas at STP has a mass equal to its molar mass
Vapour density and the relation molecular mass = 2 x vapour density