Chemical reactions and equations
Unit 6 - Chapter 12 The Mole. The Mole – a word that means a # Other words that mean #s: One dozen = 12 One gross = 144 One score = 20 One ream = 500.
CHE 111 - Module 4 CHAPTER 4 & 5 LECTURE NOTES. Stoichiometry & Balancing Equations Remember we stated in the previous chapter that stoichiometry is the.
What is a Mole Chemists use the mole to count microscopic particles. How many socks come in a pair? 2 How many eggs are in a dozen? 12 How many eggs come.
Quantities in Chemical Reactions. Stoichiometry (Greek): Stoicheion = “element” Metron = “to measure”
Quick Review: The Mole A very large counting number = 6.022 x 10 23 (6.022 followed by 23 zeros) Also known as Avogadro’s number The number shown under.
Chapter 11 Mathematics & Chemical Formulas Unit 6 – The Mole.
The Mole Chapter 11. Measuring Matter Section 11.1.
CHEMICAL QUANTITIES: THE MOLE chem i / Ih : Chapter 10
MEASURING MASS A moleis a quantity of things, just as… 1 dozen= 12 things 1 gross = 144 things 1 mole= 6.02 x 10 23 things “Things” usually measured.
Writing formulas and naming compounds
Unit 5 Counting Atoms 1, 2, 3, 4, ….. 10, 11, ……… 1000, 1001, 1002…………