PPT-The MOLE!!! The mole is one of the

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 6022 x 10 23 things or . 1 stoichiometric equivalences stoichiometric mole ratios Mole-to-Mole Conversions “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. 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 . 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 . 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. 23 . particles. . So a “mole” is a number, very similar to a dozen. . A dozen = 12 . A mole (mol) = 6.022 x 10. 23. It can be found in your reference packet on page one. Avogadro’s number = 6.022 x 10. Figure 1Mole mounds tend to be circular with a plug in themiddle Compare with the pocket gopher mound in Figure 2A single litter is born inMarch or April averagingthree or four naked youngYoung moles 2 C. 4. H. 10. + 13 O. 2. ---> 8 CO. 2. + 10 H. 2. O . Show . what the following molar ratios should be.. a. . C. 4. H. 10. / O. 2. . 2:13. b. O. 2. / CO. 2. c. O. 2. / H. 2. O. d. C. 4. 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. . What is Molar Mass? . What is a Mole? . In Latin . mole . means a "massive heap" of material.. A MASSIVE HEAP . - A front end loader operator moves mountain of sugar like sand inside the sugar warehouse at the Port of Palm Beach. (Mark Randall, Sun Sentinel). Matter is made of different kinds of particles. . We count the number of particles of that substance. . Since there are a very large number of particles in any substance, we need to define a unit of measure:. Drill . Create your placemat on your giant whiteboard. . Solve: . How many moles are in 4.32 x 10. 24. molecules of H. 2. O? . **Need calculator and Periodic Table today!. Spin your Whiteboard and grade!.