PPT-The Mole (Chapter 10) Dr. Walker

The Mole in Chemistry Not this Not this The Mole The mole is a counting unit 1 pair 2 1 dozen 12 1 mole 6022 x 10 23 atoms This number is known as Avogadros number after Italian chemist . S-C-8-1_The Mole Presentation. Source: http://en.wikipedia.org/wiki/Mole_(animal). The Mole. The mole is a counting unit for chemists, the same way a baker uses a dozen.. 1 dozen = 12 objects. 1 mole = . Stoichiometry. Stoichiometry. Goal. Calculate quantities of reactants and products needed in chemical rxns using balanced chemical equations.. Using an Equation as a Recipe . Ingredients: . F. rame, . “A Chemists Dozen”. The Mole – A Chemists Dozen. 1 dozen = . 12 items. 1 six-pack = . 1 hour = . 1 dollar =. 1 mole = . 602,000,000,000,000,000,000,000 entities. Because atoms and molecules are so small, chemists established their own counting unit – the mole. Chemistry 3/18/19. Drill. Write down these questions. While watching the video clips, write the answers, and when done, discuss with your row:. Why is airbag use in cars important?. What is the chemistry involved in air bag inflation?. Mole and Mass Relationships. Fundamentals of General, Organic, and Biological Chemistry. 7th Edition. Chapter 6 Lecture. © 2013 Pearson Education, Inc.. Julie Klare. Gwinnett Technical College. McMurry, Ballantine, Hoeger, Peterson. 1. Science and Scientific Questions. 2. Types of questions and levels of analysis. 3. Behavior- what is it?. 4. Foundations upon which we will build. 5. Approaches to the study of behavior. 1. Science and Scientific Questions. 8.1. Solutions. 2. Solutions: Solute and Solvent. Solutions. are homogeneous mixtures of two or more substances. consist of a solvent and one or more solutes. 3. Solutes. spread evenly throughout the solution . The Mole. 1 . dozen. eggs = 12 eggs. 1 . pair. of kings = 2 kings. 2 . pairs. of kings = 2 x 2 kings = 4 kings. 2 . dozen. eggs = 24 eggs. The Mole. 1 mole = 6.022 x 10. 23. things. Avogadro. ’. Atomic mass. Atoms of different elements have different masses. . Mass of a single atom is incredibly small so a special unit called atomic mass unit (. amu. ) is used. . Atomic Mass. Atoms are composed of three particles:. Chemical Quantities. Measuring doughnuts:. 1 dozen = 12 doughnuts (count) . 1 dozen = 500 g doughnuts (mass). 1 dozen = 1 box doughnuts (volume). Measuring steam (H. 2. O gas):. 1 mole = 6.02 x 10. 23 . big. concepts of Chemistry.. The mole is a . counting. number, just like. 1 dozen = . 12. things . 1 score = . 20. things . 1 ream = . 500. things . 1 mole = . 6.022 x 10. 23. . things or . 1 mole of a substance is 6.02 x 10. 23. . representative particles. .. Avogadro’s number = . 6.02 x 10. 23. Avogadro determined the difference between atoms and particles.. Representative particle. Use . the coefficients to predict the amount of reactant consumed or product formed. The ratio of the coefficients is a ratio of the moles taking part in a reaction.. Reactants (on the left of the arrow) are consumed. Concept 1 2¥ One mole of NaCl contains 6.022 x 10 NaCl formula units.¥ Use the mole quantity¥x23 ¥ The mass of an atom in amu¥; .g/amu = 1.674 x10-24 gMass of 1 mole of H atoms: 1.674 x10-24H