IMWA International Mine Water Association Prof. Dr. habil. Christian Wolkersdorfer Finnish Distinguished Professor for Mine Water Management South African.
05a the mole
C HEM 167 F INAL R EVIEW Part 1. E LECTROLYTES VS. N ONELECTROLYTES Eletrolyte: Can break apart into ions Examples: salts – NaCl, acids – HF, bases –
6.02 X 10 23 representative particles The Mole (also known as Avogadro’s number!)
Empirical/Molecular Formulas. Objective/Warm-Up SWBAT calculate molar mass of compounds. What is the molar mass of each of these elements? Na Cl C H.
SOLUTIONS Solutions : Homogeneous mixture of two or more substances. Consist of a solute and a solvent. Properties of a solution Solutions have variable.
Chapter 8: Atomic Masses: counting by weighing
CHEMICAL QUANTITIES: THE MOLE chem i / Ih : Chapter 10
Dalton used the percentages of elements in compounds and the chemical formulas to deduce the relative masses of atoms Unit is the amu(atomic mass.
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.
Section 6.2 Page 268 Empirical and Molecular Formulas
Chemical Composition Chapter 8
