PPT-Interconversion of mass, moles and number of atoms or molecules.

Author : marina-yarberry | Published Date : 2018-11-02

Moles and Mass The molar mass gives us the relationship between the number of moles and the mass of an element or compound We can use the molar mass to

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Interconversion of mass, moles and number of atoms or molecules.: Transcript


Moles and Mass The molar mass gives us the relationship between the number of moles and the mass of an element or compound We can use the molar mass to calculate the mass or . P Tagg: Gestural interconversion and connotative precision (2004)two terms Chapter 2 BLB 12. th. Expectations. Recognize important steps in the discovery of the atom and its structure.. Work with isotopes.. Learn about the periodic table.. Differentiate between molecular and ionic compounds.. The Building Blocks of Matter. Chapter 2. Chapter Outline. 2.1 The . Rutherford Model of . Atomic Structure. 2.2. . Nuclides and Their Symbols. 2.3 . Navigating the Periodic Table. 2.4 The . Masses of Atoms, Ions, and Molecules. The Mole. mole. (mol)- SI Unit for the amount of a substance that contains as many particles as there are atoms in exactly 12g of carbon-12.. A unit of counting, like the dozen.. Avogadro’s Number. Isotopes of Carbon. . . C-12 has 6 protons and 6 neutrons with an abundance of 98.90%. C-13 has 6 protons and 7 neutrons with an abundance of only 1.10%. The Mole. . . The number of units (atoms) in this amount of carbon-12 is our “bunch”. This bunch is called a . Do Now: Convert the following. What is the conversion factor for . feet to inches: 1 foot = ___inches. Feet to yards: 1 foot = ___yards. c) 12 . ft. = ___________ inches. d) 72 inches = ________ yards. A Dozen Elephants & . A Dozen Paper Clips. Would a dozen of each weigh the same amount? Give a reason for your answer.. Moles and Mass. The molar mass gives us the relationship between the number of moles and the mass of an element or compound.. Atomic Mass. What is an elements atomic mass?. The weighted average of its naturally occurring isotopes. .. When looking at an element on the periodic table of elements, where is atomic mass found?. Usually the top left hand corner of each elements box. However, on the periodic table that you will use for your AP Exam(s), this number will be located below each elements chemical symbol.. and Ions. Jim Geiger. Cem 151. Atomic Theory of Matter. The theory of atoms:. Original to the Greeks. Leuccipus, Democritus and Lucretius. (Aristotle thought they were nuts). He believed that one could divide up a piece of matter an infinite number of times, that is, one never came up with a piece of matter that could not be further divided. He suggested that everything in the world was made up of some combination of four elements: earth, fire, water, and air. The elements were acted upon by the two forces of gravity and levity. Gravity was the tendency for earth and water to sink, and levity the tendency for air and fire to rise.. By: Skye Smith. What is Mass?. Mass can be defined as a quantitative measure of an object's resistance to the change of its speed. . Scientifically speaking, mass IS different than weight, which is the measure of a planet’s gravitational force on an object. 12.00 g C-12 = 1 mol The number of particles in 1 mole isatoms 1 mol6.022 The Mole602 X 1023in scientific notationThis number is named in honor of Amedeo Avogadro 1776 18561 dozen cookies 12 cookies100 cookies 102 cookiesA million of cookies 106 cookies1 mole of cookies DE Chemistry. Dr. Walker. Timeline. B.C.. 400 B.C. . Demokritos. and . Leucippos. . use the term ". atomos. ” . 1500's. Georg Bauer: systematic metallurgy. Paracelsus: medicinal application of minerals. 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:.

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