'Mole calculations' diaporamas de présentation

The Mole Concept

The Mole Concept. For chemists, a mole is NOT a small furry animal. A mole is the SI unit for amount of substance. This is a dozen eggs - that's an amount. A mole is like a dozen - only MORE. One gram bar of gold. Today, gold is selling for $$$ per gram.

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Week 21 Chemistry

Week 21 Chemistry. Mole Conversions, Molar Mass, Percent Composition. Write the Learning Target. Warm Up: 4 Minutes. Stay in your own seat. You should be working SILENTLY. How many molecules are in 2.0 moles of Carbon Dioxide?. Hint: 1 mole = _______ particles?. Agenda.

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Chapter 9

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Moles : a counting unit in chemistry What is a mole? Why do we use moles? Mole calculations

Homework: Mole Calculations (see handwritten paper). Moles : a counting unit in chemistry What is a mole? Why do we use moles? Mole calculations Factor Label Method Isotope Review Worksheets. Size of Atoms: Diameter Some estimates. Atoms including the electron cloud

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Chemistry Calculations

Chemistry Calculations. Learning Intentions. How can we work out the formula mass of a chemical? What is a mole? How can we use formula mass and moles to work out grams of a chemical?. Part 1: Formula Mass. Each element has a Mass Number e.g. Na = 23, O = 16. Task:

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Review of Chemistry 11

Review of Chemistry 11. Prior Knowledge Needed for Chemistry 12. Naming molecules and writing formulas Balancing Chemical Equations Counting Significant figures Calculating with significant figures Mole calculations Basic Stoichiometry. Naming Molecules and Writing Formulas.

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UNIT 9 STOICHIOMETRY

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Chapter 9 Calculations from Chemical Equations (Stoichiometry)

Chapter 9 Calculations from Chemical Equations (Stoichiometry). Objectives: The Mole-Ratio Method Mole-Mole Calculations Mole-Mass Calculations Mass-Mass Calculations Limiting-Reactant and Percent Yield Calculations. A Short Review. Molar Mass

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Ch. 12

Ch. 12. 12.1. The Arithmetic of Equations.

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Solving Stoichiometry Problems

Solving Stoichiometry Problems. Did you know ?. Considered individually, the chemical elements in your body, such as carbon, hydrogen, oxygen, etc., are worth about $20. However, when combined into complex molecules, such as fluids, tissues and antibodies, your body is worth over $45 million!.

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CHEMICAL CALCULATIONS

CHEMICAL CALCULATIONS. Chapter 9 Section 2. Balanced Equations. Mole to Mole Calculations. Ratio of particles Ratio of moles Masses Most important is the ratio of moles This allows you to determine the number of moles of all substances in the reaction. Example. N 2 + 3H 2 ? 2NH 3

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Stoichiometry Foldable

Stoichiometry Foldable. Construction. Obtain 4 half sheets of paper Fold three of the sheets into a foldable and staple the final sheet to the back. Construction. Label the Tabs: Stoichiometry Mole Calculations Mole ? Mole ratios Volume? Volume Limiting Reactant Excess Reagent % Yield.

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Identify the Representative Particle

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CHEMISTRY

CHEMISTRY. Feb 24, 2011. Warm Up. Place your homework on the table How many moles are there in 67 L of H 2 gas? How many moles are there in 78 g of Mg(OH) 2 ?. Agenda. Warm Up Grade Unit 8 Worksheet 1 Unit 8: Intro to Mole Part II Quiz Homework Unit 8 Worksheet 2 Test Make Up

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Chemistry 12.2

Chemistry 12.2. Section 12.2-1. Chemical Calculations. Chemical Calculations. 12.2-1.

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Molar Mass and Mole Calculations

Molar Mass and Mole Calculations. Molar Mass. Molar mass is the mass in grams of one mole of particles (atoms, ions, molecules, formula units). Equal to the numerical value of the average atomic mass (get from periodic table) 1 mole of C atoms = 12.0 g 1 mole of Mg atoms = 24.3 g

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Unit 1: Basic Concepts of Chemistry

Unit 1: Basic Concepts of Chemistry. Moles Chemical Reactions. Unit 1: Basic Concepts of Chemistry. The Mole Concep t. Molar Mass and Mole Calculations. How many atoms of carbon are in 16.5 grams of oxalic acid, H 2 C 2 O 4 ?. % Composition, Empirical, Molecular Formulas.

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Name _________________________________________ Date ________________ Period ____________

Name _________________________________________ Date ________________ Period ____________. M OLE C ALCULATIONS.

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