'Formula units' diaporamas de présentation

Introduction to the Mole and Molar Mass

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The Mole

The Mole. Chapter 11: The Mole ____ 11.1 Measuring Matter ____ 11.2 Mass and the Mole ____ 11.3 Moles of Compounds ____ 11.4 Empirical Formulas and Molecular Mass ____ 11.5 The Formula for a Hydrate . 11.1 Measuring Matter Counting Particles

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Moles!

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Chapter 12 Stoichiometry

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CHAPTER 5

CHAPTER 5. IONIC COMPOUNDS Mrs. Czyryca. What you already know:. Ionic compounds donate and accept electrons, not share, in order to become stable. Ionic compounds consist of a metal and a nonmetal . An atom that has lost an electron has a positive charge.

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Teaching Stoichiometry in 60 Minutes or Less

Teaching Stoichiometry in 60 Minutes or Less. Stacey Cool CSTA, San Jose Oct 2012 Golden Valley High School Merced, CA scool@muhsd.org @ CoolChemGal www.tinyurl.com/coolschem. Objective. Demonstrate a way to teach molar conversions, stoichiometry & other conversions using ratios.

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Bell Ringer 3-31-14

Bell Ringer 3-31-14. 4Al + 3O 2 ? 2Al 2 O 3 For every ____ atoms of Al that react, there are ____ formula units of Al 2 O 3 produced. Determine which numbers go in the blanks, then write the statement above as a ratio. 4 Al + 3 O 2 ? 2 Al 2 O 3

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Entry Task: Jan 29 th -30 th Block 1

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Chapter 8 Covalent Bonding

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The Mole

The Mole. Chemistry SOL 1.g.14; 4.a.1-6. Chemical Measurements. Atomic Mass The weighted average of the masses of existing isotopes of an element Measured in atomic mass units (amu). Formula Mass The sum of the atomic masses of all atoms in a compound as represented in a chemical formula.

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Chapter 7- part II Ionic Compounds and Naming of Ionic compounds Resources: Class powerpoint presentation

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Che 111 Chapter 2 (Hill) Highlights

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Sample Problems:

Sample Problems:. 1. How many grams are in 45 L of neon gas at STP?. 1 mol 22.4 L. 20.180 g 1 mol. 45 L. = 41 g. Sample Problems:. 2. How many formula units are in 36.4 g of NaCl ?. 6.02 x 10 23 form.units 1 mol. 1 mol 58.443 g. 36.4 g. = 3.75 x 10 23 formula units .

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Chapter 10 Chemical Quantities

Chapter 10 Chemical Quantities. 10.3 Calculating Percent Composition of a Substance. Chemistry. Today we are learning to:- 1. Describe what is meant by water of crystallization (section 15.2) 2. Calculate the percentage composition of a compound

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Chemistry Lesson 10.1

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Matter

Matter. Characteristics. Volume Mass Inertia . Physical Properties. Descriptive : characteristics of a substance. Examples: Magnetic Color Shape Phase Volume Mass density. Chemical properties. Reactive: describes how a substance interacts with another substance. Examples:

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Chemistry 112

Chemistry 112. Chapter Seven: Ionic Bonds and Ionic Compounds. Formation of Ionic Compounds. Compounds composed of cations and anions are called ionic compounds They are electrically neutral The total number of positive charges equals the same number of negative charges

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If matter cannot be created or destroyed then

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