CBSE · Class 11 · Chemistry · Chapter 1

Some Basic Concepts of Chemistry

Introduction to chemistry, mole concept and stoichiometry.

11 lessons 195 min
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Lessons in this chapter

  1. 1Chemistry in Everyday Life and Its DevelopmentDiscover how questions about materials grew into a science of composition, structure, properties, and change.
  2. 2States and Classification of MatterUse particle models and composition to distinguish states, mixtures, elements, and compounds.
  3. 3Properties, Measurement, and UnitsDescribe physical quantities with meaningful units and connect mass, volume, density, and temperature.
  4. 4Scientific Notation and Reliable CalculationsHandle very large and small quantities while preserving the meaning of units and measurement precision.
  5. 5Laws of Chemical Combination and Atomic TheoryUse measured mass and gas-volume patterns to understand why atoms became a powerful chemical model.
  6. 6Atomic, Molecular, and Formula MassesBuild particle masses from a common reference and interpret isotope-weighted averages.
  7. 7The Mole and Molar MassConnect laboratory masses with the enormous numbers of atoms, molecules, ions, and formula units they contain.
  8. 8Percentage Composition and Chemical FormulasTranslate between element mass percentages, simplest atom ratios, and molecular formulas.
  9. 9Chemical Equations, Stoichiometry, and Limiting ReagentsRead balanced equations as quantitative relationships and calculate reactant needs, yields, and leftovers.
  10. 10Expressing Concentration in SolutionsChoose the correct concentration measure and use it to prepare, dilute, and react solutions.
  11. 11Chapter Summary and PracticeConnect the complete chapter and choose reliable methods for unfamiliar composition, reaction, and solution problems.
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