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Chemistry10.1

Chemistry10.1. 10.1. The Mole: A Measurement of Matter.

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Stoichiometry: Calculations with Chemical Formulas and Equation

Chapter 3. Stoichiometry: Calculations with Chemical Formulas and Equation. Chemical Equations. ethanol + oxygen acetic acid + water C 2 H 5 OH + O 2 CH 3 COOH + H 2 O. Or on two steps as.

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Sample Exercise 3.1 Interpreting and Balancing Chemical Equations

Sample Exercise 3.1 Interpreting and Balancing Chemical Equations.

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The Atom Atomic Number and Mass Number Isotopes

The Atom Atomic Number and Mass Number Isotopes. Atomic Theory. Atoms are building blocks of elements Similar atoms in each element Different from atoms of other elements Two or more different atoms bond in simple ratios to form compounds. Subatomic Particles.

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Atoms and Elements

Chapter 2. Atoms and Elements. Ernest Rutherford 1871-1937.* Discoverer of atomic nucleus. D. I. Mendeleev 1834-1907. Periodic Table. Predicted elements. John Dalton 1766-1844. Conceived atomic weights. The Atomic Theory of Matter. John Dalton: Elements are composed of atoms .

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Chapter 3: Stoichiometry

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Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations

CHEMISTRY The Central Science 9th Edition. Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations. David P. White. Chemical Equations. Lavoisier: mass is conserved in a chemical reaction. Chemical equations: descriptions of chemical reactions.

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UNIT FOUR Stoichiometry: Calculations with Chemical Formulas and Equations

CHEMISTRY The Central Science 9th Edition. UNIT FOUR Stoichiometry: Calculations with Chemical Formulas and Equations. Chemical Equations. Lavoisier: mass is conserved in a chemical reaction. Chemical equations: descriptions of chemical reactions.

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Measuring Matter

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Chapter 10.1

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WORKED EXAMPLE 6.1 Balancing a Chemical Equation

Strategy and Solution. WORKED EXAMPLE 6.1 Balancing a Chemical Equation.

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Atomic Masses

Atomic Masses. Balanced equations tell us the relative numbers of molecules of reactants and products. C + O 2 ? CO 2 1 atom of C reacts with 1 molecule of O 2 to make 1 molecule of CO 2. Atomic Masses (cont.).

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Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations

FAYETTEVILLE STATE UNIVERSITY COLLEGE OF BASIC AND APPLIED SCIENCES DEPARTMENT OF NATURAL SCIENCES CHEM 140. Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations. Chemical Equations. Lavoisier: mass is conserved in a chemical reaction.

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Chapter 3: Stoichiometry 3.1 & 3.2 Atomic Masses 3.3 The Mole 3.4 Molar Mass

Chapter 3: Stoichiometry 3.1 & 3.2 Atomic Masses 3.3 The Mole 3.4 Molar Mass 3.5 Percent Composition 3.6 Chemical Formulas. Atomic Mass. Atomic Mass. Atoms are so small, it is difficult to discuss how much they weigh in common units.

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Unit 1: Stoichiometry and Reactions

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Chapter 2 Atoms, Molecules, and Ions

Chapter 2 Atoms, Molecules, and Ions. Chemistry, The Central Science, 10th edition Theodore L. Brown; H. Eugene LeMay, Jr.; and Bruce E. Bursten. Troy Wood University of Buffalo Buffalo, NY ? 2006, Prentice Hall. How many neutrons are there in an atom of 14 C?. 6 8 12 14.

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Factor-Label Method

Factor-Label Method. Math technique used for conversion problems. Not the same as the proportion technique. More powerful in multistep problems. Changing Units. In the factor-label method, you use a conversion factor to express the quantity in the desired units.

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Formulas, Equations, and Stoichiometry

Formulas, Equations, and Stoichiometry. Chemical Equations. Both sides of the chemical equation must be balanced. Can only change the coefficient, not the subscripts, to balance the equation. Example: methane gas burning to produce carbon dioxide and water.

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How to Count Atoms (when they are really really small)

How to Count Atoms (when they are really really small). Review: 1 12 C atom = 12.0000 amu = 1.9926x 10 -23 g (from mass spectroscopy experiments) So. Goal: a number that is capable of expressing numbers of atoms in convenient terms.

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4.7 Atomic Mass

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