1. Example Problem #1 A compound was analyzed and found to contain 13.5 g Ca, 10.8 g O, and 0.675 g H. What is the empirical formula of the compound? Start with the number…

1. The MoleA counting unitSimilar to a dozen, except instead of 12, it’s 602 billion trillion 602,000,000,000,000,000,000,0006.02 X 1023 (in scientific notation)This number…

Slide 1Stoichiometry © 2009, Prentice-Hall, Inc. Lecture 0302 Molecular Wt. % Composition and Elemental Analysis John D. Bookstaver St. Charles Community College Cottleville,…

Slide 11 Chapter 7- Molecular Formulas Slide 2 2 Warm Up: Determine the name and molar mass of the following compounds. NaOH MnO 2 H 2 SO 4 Slide 3 3 How did you do? NaOH-…

Slide 1Stoichiometry Chapter 3 Stoichiometry: Calculations with Chemical Formulas and Equations John D. Bookstaver St. Charles Community College St. Peters, MO 2006, Prentice-Hall…

Slide 1Unit One Chemistry – Horsham College Chapter 6 – VCE Chemistry Measurement in Chemistry Slide 2 Atomic Weight As chemists gradually accumulated data on elements,…

Slide 1Mass Relationships in Chemical Reactions Chapter 3 Slide 2 Natural lithium is: 7.42% 6 Li (6.015 amu) 92.58% 7 Li (7.016 amu) 100 = _______ amu 3.1 Average atomic…

Slide 1Honors Chemistry Part 1 Unit 4 – The Mole Slide 2 WHAT IS A MOLE? 602214199000000000000000 6.02 x 10 23 Slide 3 Mole Facts 6.02 X 10 23 Pennies: Would make at least…

Slide 1Calculations What you need to know: Relative formula mass Empirical formula % composition by mass Use balanced equations to calculate masses of reactants and products…

Slide 1C HEM 167 F INAL R EVIEW Part 1 Slide 2 E LECTROLYTES VS. N ONELECTROLYTES Eletrolyte: Can break apart into ions Examples: salts – NaCl, acids – HF, bases –…