
Chapter 11:
The Mole
11.1 Measuring Matter
counting particles, Avogadro’s Number 6.02 x 10 ^{23}, mole,
 mole ↔ particle equations
 # moles x 6.022 x 10^{23} particles/mole = # of particles
 # particles x 1 mole / 6.022 x 10^{23} particles = # of moles
11.2 Mass and the Mole
mass of a mole, molar mass,
 mass ↔ mole equations
 # of moles x # of grams / mole = # of grams
 mass (in grams) / molar mass (grams / mole) = # of moles
11.3 Moles of Compounds
chem formulas & mole, molar mass of compounds,
mole ↔ mass of compound
mass ↔ particles (molecules) of compound
11.4 Empirical and Molecular Formulas
Percent composition of compound, empirical formula, determining molecular formula
% by Mass = Mass of Element / Mass of Compound x 100
11.5 Formula of a Hydrate
Naming hydrates Na_{2}CO_{3} · 10 H_{2}O is a decahydrate (10 waters per molecule)
Empirical formula, molecular formula
Molecular formula = (empirical formula subscripts) n
Section 11.1 Measuring Matter
 3/4/2019 p312 4 a,b,c,d  must use format shown in class
 3/4/2019 VIDEO LINK  Tyler DeWitt on x & ÷ significant figures
 4/2/2019 p347  348 99 (b), 101 (b), 108 (b) , 114(b),
122 (b) lead(II) chloride is PbCl2
and a formula unit is the same as a molecule


Section 11.2 Mass and the Mole
 3/5/2019 p 316 12 a,b,c,d  format as shown in class
 3/5/2019 VIDEO LINK  x and divide with powers of 10 and significant figures (shown in class today)
 3/6/2019 p318 13 a,b,c,d,e
 3/11/2019 p. 318 14 a,b,c,d,e (8 pts)
 4/2/2019 p347  348 99 (b), 101 (b), 108 (b) , 114(b),
122 (b) lead(II) chloride is PbCl2
and a formula unit is the same as a molecule
 4/11/2019 HW  Stoichiometry Worksheet  work all problems, show calculations including the molar masses that are used. Answers in the the whiteboard file at the end of the file on slide 31.


Section 11.3 Moles of a Compound
 3/13/2019 p346 89a, 92a, 98a, 101a, 107
 4/2/2019 p347  348 99 (b), 101 (b), 108 (b) , 114(b),
122 (b) lead(II) chloride is PbCl2
and a formula unit is the same as a molecule
 4/11/2019 HW  Stoichiometry Worksheet  work all problems, show calculations including the molar masses that are used. Answers in the the whiteboard file at the end of the file on slide 31.


Section 11.4 Empirical and Molecular Formulas

Section 11.5 The Formula for a Hydrate
 3/27/2019 p. 340 63 modified  calculate molar mass of MgSO4 and H2O and convert grams we calc. in class to moles MgSO4 and H2O
Periods 25  Check out the whiteboard file for significantly more help on the problem you are supposed to do tonight. LOTS AND LOTS OF HELP. See pages 14, 15, and 18.
 3/28/2019 p 349 #152 (use formatting shown in class today)
Answer: the anhydrate (MgI_{2}) will have 2 H_{2}O molecules
 3/29/2019 Formula of a Hydrate LAB  complete your calculations to get the mole ratio of the anhydrate (MgSO_{4}) : to water (H_{2}O)

 

Section 11.1 Measuring Matter
 3/4/2019 p311 13  must format as shown in class

Section 11.2 Mass and the Mole
 3/7/2019 p318 13 a,b,c,d,e and p319 15,16,17

Section 11.3 Moles of a Compound

Section 11.4 Empirical and Molecular Formulas

Section 11.5 The Formula for a Hydrate
 

Section 11.1 Measuring Matter

Section 11.2 Mass and the Mole
Standard 3 c  Conservation of Matter and Stoichiometry
View Standard 3 State Standard: One mole equals 6.02x10^23 particles (atoms or molecules).
Students Will be able to:Use the mole concept to calculate the number of particles within a giving mass of a substance Book Reference Pages: 317319
Standard 3 d  Conservation of Matter and Stoichiometry
View Standard 3 State Standard: How to determine molar mass of a molecule from its chemical formula and a table of atomic masses, and how to convert the mass of a molecular substance to moles, number of particles of volume of gas at standard temperature and pressure.
Students Will be able to:Calculate the molar mass from a chemical formula. Convert mass to moles to volume Book Reference Pages: 313319


Section 11.3 Moles of a Compound
Standard 3 c  Conservation of Matter and Stoichiometry
View Standard 3 State Standard: One mole equals 6.02x10^23 particles (atoms or molecules).
Students Will be able to:Use the mole concept to calculate the number of particles within a giving mass of a substance Book Reference Pages: 325327
Standard 3 d  Conservation of Matter and Stoichiometry
View Standard 3 State Standard: How to determine molar mass of a molecule from its chemical formula and a table of atomic masses, and how to convert the mass of a molecular substance to moles, number of particles of volume of gas at standard temperature and pressure.
Students Will be able to:Calculate the molar mass from a chemical formula. Convert mass to moles to volume Book Reference Pages: 322327


Section 11.4 Empirical and Molecular Formulas

Section 11.5 The Formula for a Hydrate
Standard 3 D  Conservation of Matter and Stoichiometry
View Standard 3 State Standard: How to determine molar mass of a molecule from its chemical formula and a table of atomic masses, and how to convert the mass of a molecular substance to moles, number of particles of volume of gas at standard temperature and pressure.
Students Will be able to:Calculate the molar mass from a chemical formula. Convert mass to moles to volume Book Reference Pages: 338343

 

 Tutorial for calculating mass <> moles: Summary box and 2 detailed examples of converting moles to other units Std 3e
 Avogadro’s Number in Calculations: Detailed examples and practice problems that use Avogadro's # in calculations Std 3c
 Relating amu to g, # of atoms and gmw: Explanation of the atomic mass unit (AMU) & relating it to mass Std MISC
 Converting grams to moles to atoms: Another way to explain converting g <> moles <> atoms using bridge analogy Std 3
 Grams <>Moles<>Atoms (Handwritten): summary of how to make these conversions with insert from p. 327 Fig 118 (Ch 11.3)
 Multiply and Divide Powers of 10: Multiply & Divide powers of 10 in this tutorial. It guides you through how to multiply and divide numbers attached to 10^{x}
 Mole <> rep. particle Conv. Practice: This tutorial is a worksheet that has 2 examples and 10 problems  Mole <> representative particle Conversion Practice  Tutorial
 Formula of a Hydrate  how to calculate: Formula of a Hydrate  how to calculate, including one example with complete solution
Formula of Hydrate
● Examples of several hydrates and how to calculate formula of hydrate from lab results Visit Site

General
● Introduction to the mole and its meaning and use (Visionlearning) Visit Site
● Professor Mole's Visit Site
● Khan academy vid showing what a mole actually is. Very well done Visit Site

Mole Conversions
● Mole conversion tutorial & help  uses grids Visit Site
● Calculator to figure gram molecular weight Visit Site
● Tutorial on Limiting Reagent, Theoretical Yield, and % Yield (UW Oshkash) Visit Site

Stoichiometry  Ch 11.2
● Problem Solving Skills with moles (CHP) Visit Site
● Tutorial useful in 5 areas of stoichiometry & the mole Visit Site
● Sodium  Scroll down to "Sodium Party". Lots of videos & background how Na reacts with water and also O_{2}. These guys are crazzy!!! Visit Site

Wigger Vids
● Formula of a Hydrate calculated for p. 349 prob. 152. Detailed discussion of how solve this problem. Visit Site
● BASIC CONVERSIONS  A graphic from page 319 of our textbook is used as a visual representation of the process of converting particles <> mol and g <> mol. Lecture 1 Visit Site
● BASIC CONVERSIONS  Conversions are show for one substance only. We are first changing moles > particles in our first example, and then changing g > mol. Lecture 2 Visit Site
● g molecule > mol molecule > mol atom > atoms in problem 31 a p.326 Visit Site
 


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