Some Basic Concepts of Chemistry
How much rice is needed for a hostel of fifty students, and how do chemists count invisible atoms. This chapter in NCERT Class 11 Chemistry, Chapter 1, introduces matter, laws of chemical combination, Dalton theory, atomic and molecular masses, the mole concept and Avogadro number. It explains empirical and molecular formulas, stoichiometric calculations, limiting reagent and concentration terms like molarity and molality. You will learn to convert between mass, volume and moles and to solve routine chemical calculations confidently.
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