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Moles and Molecules

Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

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Page 1: Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

Moles and Molecules

Page 2: Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

Formula Mass

• Sum of the average atomic masses of all the atoms represented in a formula

• Measured in amu

• What is the formula mass of KClO3?

Page 3: Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

Molar Mass

• How many grams of a substance there are per mole of that substance

• Numerically equal to the formula mass

• Units are g/mole

• What is the molar mass of water?

Page 4: Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

Mole Problems

• How many grams are in 2.8 mole of MgCl2?

• How many grams in 3.0 mole of NaCl?

• How many grams in .10 mole of carbon dioxide?

Page 5: Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

Mole Problems

• How many moles in 125g of BeS?

• How many moles in 450 g of CaCO3?

• How many moles in 33.4 g of O2?

Page 6: Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

Mole Problems

• How many molecules in .58 mole of CaCl2?

• How many molecules in 3.0 mole of water?

Page 7: Moles and Molecules. Formula Mass Sum of the average atomic masses of all the atoms represented in a formula Measured in amu What is the formula mass

Mole Problems

• How many moles is 1.35x1024 molecules of water?

• How many moles is 5.6x 1023 molecules of HCl?

H atomic mass 1.00795 4x4.03180 amu He 4.00260 amu 0.0292 amu

H atomic mass 1.00795 4x4.03180 amu He 4.00260 amu 0.0292 amu

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Formula Mass and the Mole Concept · Element verageA Atomic Mass (amu) Molar Mass (g/mol) Atoms/Mole C 12.01 12.01 6.022 2310 H 1.008 1.008 6.022 2310 O 16.00 16.00 6.022 2310 Na

Formula Mass and the Mole Concept · Element verageA Atomic Mass (amu) Molar Mass (g/mol) Atoms/Mole C 12.01 12.01 6.022 2310 H 1.008 1.008 6.022 2310 O 16.00 16.00 6.022 2310 Na

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CHEMICAL COMPOUNDS AND THE MOLE Chapter 7. Formula Mass Mass of H 2 O? H 2(1.01) + O 16.00_ 18.02 amu Formula Mass: mass of molecule, formula unit,

CHEMICAL COMPOUNDS AND THE MOLE Chapter 7. Formula Mass Mass of H 2 O? H 2(1.01) + O 16.00_ 18.02 amu Formula Mass: mass of molecule, formula unit,

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Atoms, Molecules and Ions Chapter 2. Properties of the Electron, Proton & Neutron amu = atomic mass units 1 amu = 1.66x10 -24 g Mass of carbon-12 = 12

Atoms, Molecules and Ions Chapter 2. Properties of the Electron, Proton & Neutron amu = atomic mass units 1 amu = 1.66x10 -24 g Mass of carbon-12 = 12

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Chapter 3. Atomic Mass amu = Average Atomic Mass Unit Based on 12 C as the standard. 12 C = exactly 12 amu The average atomic mass (weight) of

Chapter 3. Atomic Mass amu = Average Atomic Mass Unit Based on 12 C as the standard. 12 C = exactly 12 amu The average atomic mass (weight) of

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06 Mass Formula Theory I

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€¦ · atomic mass of 62.9298 amu and an abundance of 69.09%. The other isotope, 65Cu, has an abundance of 30.91%. The average atomic mass between these two isotopes is 63.546 amu

€¦ · atomic mass of 62.9298 amu and an abundance of 69.09%. The other isotope, 65Cu, has an abundance of 30.91%. The average atomic mass between these two isotopes is 63.546 amu

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1 By definition: 1 atom 12 C “weighs” 12 amu On this scale 1 H = 1.008 amu 16 O = 16.00 amu Atomic mass is the mass of an atom in atomic mass units (amu)

1 By definition: 1 atom 12 C “weighs” 12 amu On this scale 1 H = 1.008 amu 16 O = 16.00 amu Atomic mass is the mass of an atom in atomic mass units (amu)

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Welcome to our CHEM 4 lecture Go to LearningCatalytics ......5) Calculate the formula mass of lithium perbromate. A) 150.841 amu D) 151 amu B) 150.84 amu E) 150 amu C) 150.8 amu F)

Welcome to our CHEM 4 lecture Go to LearningCatalytics ......5) Calculate the formula mass of lithium perbromate. A) 150.841 amu D) 151 amu B) 150.84 amu E) 150 amu C) 150.8 amu F)

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Chapter 3 Chemical Stoichiometry. 3.1: Atomic Mass/Weight The average mass of a sulfur atom is 32.06 amu The average mass of a sodium atom is 22.99 amu

Chapter 3 Chemical Stoichiometry. 3.1: Atomic Mass/Weight The average mass of a sulfur atom is 32.06 amu The average mass of a sodium atom is 22.99 amu

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Mole Relationships. By definition: 1 atom 12 C “weighs” 12 amu Atomic mass is the mass of an atom in atomic mass units (amu) The mole (mol) is the amount

Mole Relationships. By definition: 1 atom 12 C “weighs” 12 amu Atomic mass is the mass of an atom in atomic mass units (amu) The mole (mol) is the amount

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UNIT 1: INTRO AND ATOMIC THEORYghhspowerschem.weebly.com/uploads/3/1/6/2/31623725/unit_1_notes.… · atomic mass unit (amu) CALCULATE ATOMIC MASS •Use the following formula: (%𝒊

UNIT 1: INTRO AND ATOMIC THEORYghhspowerschem.weebly.com/uploads/3/1/6/2/31623725/unit_1_notes.… · atomic mass unit (amu) CALCULATE ATOMIC MASS •Use the following formula: (%𝒊

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Is Phosphine in the Mass Spectra from Venus’ Clouds? · 2020. 9. 29. · o Masses of 29.997 and 15.995 amu are consistent with NO (29.998074 amu) and atomic oxygen (15.995000 amu);

Is Phosphine in the Mass Spectra from Venus’ Clouds? · 2020. 9. 29. · o Masses of 29.997 and 15.995 amu are consistent with NO (29.998074 amu) and atomic oxygen (15.995000 amu);

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Mole Notes. 1. Atomic Mass Unit amu – atomic mass unit, used to describe the mass of an atom 1 amu = 1.66 x 10 -24 g Example: How many amu are in 27.0

Mole Notes. 1. Atomic Mass Unit amu – atomic mass unit, used to describe the mass of an atom 1 amu = 1.66 x 10 -24 g Example: How many amu are in 27.0

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Mass Relationships in Chemical Reactions. By definition: 1 atom 12 C “weighs” ________ On this scale 1 H = ________ amu 16 O = ________ amu _________________

Mass Relationships in Chemical Reactions. By definition: 1 atom 12 C “weighs” ________ On this scale 1 H = ________ amu 16 O = ________ amu _________________

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The Mole Chemistry 6.0 Getting to know the terms…MICROSCOPICMassMACROSCOPIC Molar Mass Atom Atomic mass amu Element g/mol Molecule Molecular mass amu

The Mole Chemistry 6.0 Getting to know the terms…MICROSCOPICMassMACROSCOPIC Molar Mass Atom Atomic mass amu Element g/mol Molecule Molecular mass amu

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Chapter 5 -A - Philadelphia University · 2019-03-14 · 3 DALTON (ATOMIC MASS UNIT, AMU) • Atomic and molecular weights are generally expressed in terms of atomic mass units (amu),or

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· The isotope with mass 62.93 amu must be more abundant because its mass is closer to 63.55 amu (the relative weighted average atomic mass for copper) than is the mass of the other

· The isotope with mass 62.93 amu must be more abundant because its mass is closer to 63.55 amu (the relative weighted average atomic mass for copper) than is the mass of the other

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Molar (Formula) Mass Molar (Formula) Mass. Where do we find the atomic mass? For every 1 mol, there are 22.99g!

Molar (Formula) Mass Molar (Formula) Mass. Where do we find the atomic mass? For every 1 mol, there are 22.99g!

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ucfsarc.files.wordpress.com · Web viewGallium has two naturally occurring isotopes: Ga-69, with mass 68.9256 amu and a natural abundance of 60.11%, and Ga-71, with mass 70.9247 amu

ucfsarc.files.wordpress.com · Web viewGallium has two naturally occurring isotopes: Ga-69, with mass 68.9256 amu and a natural abundance of 60.11%, and Ga-71, with mass 70.9247 amu

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Chap 3 The math of chemistry. Formula mass Atoms have weight. We measured these as atomic mass. Ex: Oxygen weighs 16 AMU Ex: Oxygen weighs 16 AMU Carbon

Chap 3 The math of chemistry. Formula mass Atoms have weight. We measured these as atomic mass. Ex: Oxygen weighs 16 AMU Ex: Oxygen weighs 16 AMU Carbon

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The S-word Stoichiometry Chapter 3. By definition: 1 atom 12 C “weighs” 12 amu On this scale 1 H = 1.008 amu 16 O = 16.00 amu Atomic mass is the mass

The S-word Stoichiometry Chapter 3. By definition: 1 atom 12 C “weighs” 12 amu On this scale 1 H = 1.008 amu 16 O = 16.00 amu Atomic mass is the mass

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CHAPTER 3B Stoichiometry. Counting Atoms Amu – atomic mass unit 1 amu = 1.66 x 10 -24 g Ex. 1 carbon atom = 12 amu 1 Fe atom = 55.85 amu 1 Na atom = ???

CHAPTER 3B Stoichiometry. Counting Atoms Amu – atomic mass unit 1 amu = 1.66 x 10 -24 g Ex. 1 carbon atom = 12 amu 1 Fe atom = 55.85 amu 1 Na atom = ???

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Atoms and Elements - SCITECH-EXPERT.COM · Example 2.5 If copper is 69.17% Cu-63 with a mass of 62.9396 amu and the rest Cu-65 with a mass of 64.9278 amu, ... 0.3083 64.9278 amu Atomic

Atoms and Elements - SCITECH-EXPERT.COM · Example 2.5 If copper is 69.17% Cu-63 with a mass of 62.9396 amu and the rest Cu-65 with a mass of 64.9278 amu, ... 0.3083 64.9278 amu Atomic

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Stoichiometry: Measurement of Elements. Formula Weights Sum of the atomic weights (amu) of each atom in a chemical formula. Called “molecular weight”

Stoichiometry: Measurement of Elements. Formula Weights Sum of the atomic weights (amu) of each atom in a chemical formula. Called “molecular weight”

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08 Mass Formula Applications Idfgd

08 Mass Formula Applications Idfgd

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Chapter 9 Chemical Calculations: The Mole concept and ...staff.columbiacollege.bc.ca/tlajevardi/chem 100,W13/Lesson7.pdf · NO 2 formula mass: 46.01 amu molar mass: 46.01 g/mole The

Chapter 9 Chemical Calculations: The Mole concept and ...staff.columbiacollege.bc.ca/tlajevardi/chem 100,W13/Lesson7.pdf · NO 2 formula mass: 46.01 amu molar mass: 46.01 g/mole The

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Average Atomic Mass. carbon atom (12 amu) Measuring Atomic Mass Unit is the Atomic Mass Unit (amu) One twelfth the mass of a carbon-12 atom. Each isotope

Average Atomic Mass. carbon atom (12 amu) Measuring Atomic Mass Unit is the Atomic Mass Unit (amu) One twelfth the mass of a carbon-12 atom. Each isotope

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Atomic mass is the mass of an atom in atomic mass units (amu)

Atomic mass is the mass of an atom in atomic mass units (amu)

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