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Chapter 11: The Mole

11.1 Measuring Matter
counting particles, Avogadro’s Number 6.02 x 1023, mole,
mole ↔ particle equations
# moles x 6.022 x 1023 particles/mole = # of particles
# particles x 1 mole / 6.022 x 1023 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 Na2CO3 · 10 H2O is a decahydrate (10 waters per molecule) Empirical formula, molecular formula Molecular formula = (empirical formula subscripts) n

  Homework
Section 11.1 Measuring Matter
  1. 3/4/2019 p312 4 a,b,c,d - must use format shown in class
  2. 3/4/2019 VIDEO LINK - Tyler DeWitt on x & ÷ significant figures
Section 11.2 Mass and the Mole
  1. 3/5/2019 p 316 12 a,b,c,d - format as shown in class
  2. 3/5/2019 VIDEO LINK - x and divide with powers of 10 and significant figures (shown in class today)
  3. 3/6/2019 p318 13 a,b,c,d,e
  4. 3/11/2019 p. 318 14 a,b,c,d,e (8 pts)
Section 11.3 Moles of a Compound
  1. 3/13/2019 p346 89a, 92a, 98a, 101a, 107
Section 11.4 Empirical and Molecular Formulas
Section 11.5 The Formula for a Hydrate
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