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 . And 57375en 57375ere Were None meets the standard for Range of Reading and Level of Text Complexity for grade 8 Its structure pacing and universal appeal make it an appropriate reading choice for reluctant readers 57375e book also o57373ers students Ms. Fordham. Madam C.J. Walker. Who is Madam C.J. Walker?. What is she important?. What you did not know about Madam C.J. Walker. . Background. Walker is a African- American Female.. Born Sarah Breedlove McWilliams Walker.. “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 . “One of my earliest memories involves sitting on my dad’s lap in his studio in the garage of our house and watching him draw. I remember thinking: ‘I want to do that, too,’ and I pretty much decided then and there at age 2½ or 3 that I was an artist just like Dad.”. AAUW . 2017 ANNUAL BRUNCH. Ms. Kelly Vanager, getting ready for the 2017 AAUW Annual Brunch crowd. S. he . is the owner of . Kellys. ’ Kitchen.. The . beautiful tables are decorated and . Group Assignment. 1. . . In the beginning of “The Devil and Tom Walker,” Irving gives the reader some background about the treasure of the pirate Captain Kidd. Reread the first paragraph and determine what meaning the reader is meant to infer from this information. What is the writer setting up for the reader?. McMurter. What is Dandy-Walker Syndrome?. The National Institute of Neurological Disorders and Stroke defines Dandy-Walker Syndrome as: “A congenital brain malformation involving the cerebellum (an area of the back of the brain that coordinates movement_ and the fluid-filled spaces around it” (NINDS).. 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:. 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. 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. David Strauch Thesis Committee Lyndon Wester Chairperson Mary McDonald Matt McGranaghan Keywords Mole Cultural b12 Speaking of mole13 Getting a taste of mole47 62 Aspects of Mesoamerican plant dom Chapter 9. History. About 200 years ago scientists needed a unit of measure that connected the mass of a molecule or atom with how many of them there were. . Amadeo Avogadro proposed his hypothesis in 1811. At that time, there was no data on the number of particles in a mole, or an agreement on any atomic weights or the standard. . 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.