PPT-6 .3 The Mole

A Chemists Dozen The Mole A Chemists Dozen 1 dozen 12 items 1 sixpack 1 hour 1 dollar 1 mole 602000000000000000000000 entities Because atoms and molecules are so small chemists established their own counting unit the mole. 1 stoichiometric equivalences stoichiometric mole ratios Mole-to-Mole Conversions 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?. Diagnosis and evaluation of postmolar GTN. Case Scenario . A 21 year old . nulligravida. presents with bleeding during early pregnancy. Last normal menses was 9 weeks ago, home urine pregnancy test was positive 2 weeks ago, and she has been spotting for two days with heavier bleeding the last 6 hours.. 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. .. 2.) How many moles are there in 63.2g of Cl. 2. ?. 60.4L O. 2. . 22.4L O. 2. . 1 mol O. 2. . = 2.7 mol O. 2. 63.2g Cl. 2. 70g Cl. 2. 1mol Cl. 2. = 0.903mol Cl. 2. Ch. . 9. Math In Chemistry. 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. 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). Skin Moles are extremely common. In fact, most adults have fifteen to twenty in a variety of places on their body. Some may have much more. Most of the skin moles appear during the first 20 years of the person\'s life. 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:. The amount of a substance that contains:. 6.02 x 10. 23 . particles (atoms, molecules, formula units). . 22.4 L (volume). X grams (molar mass). Put simply:. A mole is a unit of . 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!.