PPT-The Mole

A Chemists Dozen httpwwwccsk12inuschsteachersVKundratMOLEDAYEXPLOD5B15Dgif 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 = . “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. A non-chemist’s view. A mole tells us “how many?”. You know what your neighbor means when they ask to borrow a . dozen. eggs--they want . twelve. eggs. A mole tells us “how many?”. You know (or could figure out!) what Abraham Lincoln meant when he said “four score and seven years ago…” during the Gettysburg Address---a . 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 . 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. 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. .. 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. 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. . 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. 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!.