In this chapter, you will be introduced to the mole as the basic SI unit for measuring the amount of a substance. You will learn how the mole is related to mass and volume and how these relationships are used in making calculations. You will learn the terms gram atomic mass, gram molecular mass, and gram formula mass. Finally, you will learn how to calculate percent composition and how to determine molecular and empirical formulas from experimental data. Chapter Outline

   In this chapter, you will learn:
  • to describe how Avogadro's number is related to a mole of any substance
  • to calculate the mass of a mole of any substance
  • to use the mole to convert among measurements of mass, volume, and number of particles
  • to calculate the percent composition of a substance
  • to derive the empirical formula and molecular formula of a compound