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Measuring Matter

10.1. Measuring Matter. You often measure the amount of something by one of three different methods—by count, by mass, and by volume. 10.1. 10.1. 10.1. 10.1. for Sample Problem 10.1. Problem Solving 10.1 Solve Problem 1 with the help of an interactive guided tutorial. 10.1.

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Measuring Matter

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  1. 10.1 Measuring Matter • You often measure the amount of something by one of three different methods—by count, by mass, and by volume.

  2. 10.1

  3. 10.1

  4. 10.1

  5. 10.1

  6. for Sample Problem 10.1 Problem Solving 10.1 Solve Problem 1 with the help of an interactive guided tutorial.

  7. 10.1 What is a Mole? • What Is a Mole? • How is Avogadro’s number related to a mole of any substance?

  8. 10.1 What is a Mole? • A mole of any substance contains Avogadro’s number of representative particles, or 6.02  1023 representative particles. • The term representative particle refers to the species present in a substance: usually atoms, molecules, or formula units.

  9. 10.1 What is a Mole? • Converting Number of Particles to Moles • One mole (mol) of a substance is 6.02  1023 representative particles of that substance and is the SI unit for measuring the amount of a substance. • The number of representative particles in a mole, 6.02  1023, is called Avogadro’s number.

  10. 10.1 What is a Mole?

  11. 10.2

  12. 10.2

  13. 10.2

  14. 10.2

  15. for Sample Problem 10.2 Problem Solving 10.4 Solve Problem 4 with the help of an interactive guided tutorial.

  16. 10.1 What is a Mole? • Converting Moles to Number of Particles

  17. 10.3

  18. 10.3

  19. 10.3

  20. 10.3

  21. for Sample Problem 10.3 Problem Solving 10.5 Solve Problem 5 with the help of an interactive guided tutorial.

  22. 10.1 The Mass of a Mole of an Element • The Mass of a Mole of an Element • How is the atomic mass of an element related to the molar mass of an element?

  23. 10.1 The Mass of a Mole of an Element • The atomic mass of an element expressed in grams is the mass of a mole of the element. • The mass of a mole of an element is its molar mass.

  24. 10.1 The Mass of a Mole of an Element • One molar mass of carbon, sulfur, mercury, and iron are shown.

  25. Animation 11 • Animation 11 • Find out how Avogadro’s number is based on the relationship between the amu and the gram.

  26. 10.1 The Mass of a Mole of an Element

  27. 10.1 The Mass of a Mole of a Compound • The Mass of a Mole of a Compound • How is the mass of a mole of a compound calculated?

  28. 10.1 The Mass of a Mole of a Compound • To calculate the molar mass of a compound, find the number of grams of each element in one mole of the compound. Then add the masses of the elements in the compound.

  29. 10.1 The Mass of a Mole of a Compound • Substitute the unit grams for atomic mass units. Thus 1 mol of SO3 has a mass of 80.1 g.

  30. 10.4

  31. 10.4

  32. 10.4

  33. 10.4

  34. for Sample Problem 10.4 Problem Solving 10.7 Solve Problem 7 with the help of an interactive guided tutorial.

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