THE MOLE Since atoms are so small, any sensible laboratory quantity of substance must contain a huge number of atoms: 1 litre of water contains 3.3 x 1025 molecules. 1 gram…

CHAPTER 22 The Electric Field I: Discrete Charge Distributions 1*·If the sign convention for charge were changed so that the charge on the electron were positive and the…

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Slide 1 Slide 2 Stoichiometry Sherlock Holmes, in Sir Arthur Conan Doyles A Study in Scarlet In solving a problem of this sort, the grand thing is to be able to reason backward.…

Slide 1The Mole A Counting Unit 09 You WILL NEED your calculators from now on!! Rev 10/12/09 Slide 2 Other Counting Units t 1 Dozen =12 things t 1 Pair =2 things t 1 Gross…

Slide 1Do now! Have a look through your test! Slide 2 Moles! Slide 3 Equal masses of different elements will contain different numbers of atoms (as atoms of different elements…

Slide 1 Slide 2 Slide 3 Atomic Mass l Atoms are so small, it is difficult to discuss how much they weigh in grams l Use atomic mass units. l an atomic mass unit (amu) is…

Slide 1February 2008 Green Infrastructure and Sustainable Communities 17-1 Global Climate Change & Carbon Footprinting resources and strategies Module 17 Mark van Soestbergen…

Slide 11 Chapter 7 Chemical Quantities Charles Page High School Dr. Stephen L. Cotton Slide 2 2 Section 7.1 The Mole: A Measurement of Matter n OBJECTIVES: –Describe how…

Slide 1Thermal Physics Thermal Concepts Slide 2 Temperature The absolute temperature scale (measured in Kelvin and with a minimum value of zero Kelvin) is used in physics…