Slide 1 1 Chapter 6 Chemical Quantities 6.5 Percent Composition and Empirical Formulas Copyright © 2008 by Pearson Education, Inc. Publishing as Benjamin Cummings Slide…

* Chapter 7 Chemical Quantities 7.1 The Mole Basic Chemistry Copyright © 2011 Pearson Education, Inc. * Collection Terms A collection term states a specific number…

Balancing Equations and mols Some Rules... Remember...when elements are in a chemical reaction, they form a new substance Example: Sodium and Chlorine react to form Salt…

Unit 1 Calculations Go to question 1 2 3 4 5 6 7 8 In which of the following pairs do gases contain the same number of oxygen atoms? a. 2 mol of oxygen and 2 mol of carbon…

Unit 1 Calculations Go to question 1 2 3 4 5 6 7 8 In which of the following pairs do gases contain the same number of oxygen atoms? a. 2 mol of oxygen and 2 mol of carbon…

coefficients give ratios coefficients of a balanced equation give the ratio of molecules in the reaction ___ H2 (g) + ___ O2 (g)  ___ H2O (l) ___ molecules of hydrogen…

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…

PowerPoint Presentation The Mole Concept Avogadroâs Number = 6.022 x 1023 1 Objectives: To state the value of Avogadroâs number: 6.02 x1023. To state the mass of Avogadroâs…