Avogadroâs Number and Molar Conversions How many eggs are there in 5 dozen? How many moles are in 2.25 grams of the element iron, Fe? Standard: Utilize appropriate mathematical…

CHAPTER 3b & 4b CHAPTER 3b Stoichiometry Counting Atoms Amu â 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 = ???…

1.1 byby Chemistry departmentChemistry department CHEM-111CHEM-111 General ChemistryGeneral Chemistry Unit five (a)Unit five (a) THE MoleTHE Mole 2. 2 Unit FiveUnit Five…

Chapter 8: Atomic Masses: counting by weighing Objective: To understand atomic mass and its experimental determination Atomic Mass: Atomic Mass Unit C(s) + O2 (g) CO2 (g)…

MEASURING MASS A mole is a quantity of things, just as… 1 dozen = 12 things 1 gross = 144 things 1 mole = 6.02 x 1023 things “Things” usually measured in moles are…

Section 6.2 Page 268 Empirical and Molecular Formulas Empirical vs. Molecular Formula Empirical Formula (Ef) A formula that gives the simplest whole-number ratio of the atoms…