What is stoichiometry? The quantitative relationship among reactants and products is called stoichiometry. The term stoichiometry is derived from two Greek words: stoicheion…

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…

Slide 1Stoichiometry Slide 2 Stoichiometry is the part of chemistry that studies amounts of substances that are involved in reactions. It could be amounts of substances before…

Slide 1Chapter 6 – Chemical Composition Slide 2 Counting by weighing Situation: You work in a candy shop. You sell jelly beans. Somebody wants to buy 1000 jelly beans.…

MOLE CONCEPT PROBLEM 1 A crystalline hydrated salt on being rendered anhydrous, loses 45.6% of its weight. The percentage composition of anhydrous salt is: Al 10.5%= , K…

Slide 1 Slide 2 1 STOY-KEE-AHM-EH-TREE Stoichiometry is the part of chemistry that studies amounts of substances that are involved in reactions. Slide 3 GOALS 2 2. Explain…

Slide 1  CHEM.B.1.1.1 Apply the mole concept to representative particles (e.g., counting, determining mass of atoms, ions, molecules, and/or formula units).  CHEM.B.2.1.2…

Slide 1 UNIT VII Excess & Percentage Yield Unit 7: Lesson 2 Slide 2 L IMITING REAGENTS & E XCESS AMOUNTS SO far, we’ve only considered reactions assuming that ALL…

Slide 1 Law of definite composition A compound contains the same elements in exactly the same mass proportions regardless of the size or source of sample. The Law of Definite…

Slide 1 Chemistry 10.3 “Percent Composition and Chemical Formulas” Slide 2 I. Percent Composition A. Def – the percent by mass of each element in a compound. 1. Must…