PPT-The Mole Concept

Avogadros Number 6022 x 10 23 How do you measure how much You can measure mass or volume or you can count pieces We measure mass in grams We measure volume in liters We count pieces in . A Chemist’s “Dozen”. http://www.ccs.k12.in.us/chsteachers/VKundrat/MOLE_DAY_EXPLOD%5B1%5D.gif. The Mole. The particles that make up matter (ions, atoms, and molecules) are . extremely small. Only large amounts of these particles can be weighed. In order to simplify these large numbers we use . 1 stoichiometric equivalences stoichiometric mole ratios Mole-to-Mole Conversions 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 = . Hi I'm Malcolm the mole. habitat. . You might have seen my house roof but there is a little Chance of you seeing me or other . moles. because I live Under the ground . You can find moles in woodland, grassland and farmland And all around the U.K. If you find a mole hole don’t kick it down because The moles babies are under there.. “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?. The Mole. Chemist’s counting number. amount. of a substance . 1 mole is equal to 6.022 x 10. 23. atoms or particles or molecules (Avogadro’s number). There are always 6.022 x 10. 23 . particles in . 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. 2 H. 2. + O. 2. .  2 H. 2. O. Read as “2 moles of hydrogen combined with 2 moles of oxygen yield 2 moles of water” . So what’s a mole??. Definitions. Mole- unit of measurement defined by the amount of substance that contains the same number of particles in 12 g of a Carbon-12 atom. 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 23. How do you measure how much?. You can measure mass, . or volume,. or you can count pieces.. We measure mass in grams.. We measure volume in liters.. We count pieces in . MOLES.. . Counting. . Counting words are used to simplify a description of a number of items. .