1. Small   Large  in   number   Difficult   to  count   Difficult   to  weigh   ATOM   2. One  mole  of  substance  is  the  amount  of  substance  that…

Slide 1 Slide 2 IIIIIIIV The Mole I. Molar Conversions Slide 3 A. What is the Mole? n A counting number (like a dozen) n Avogadro’s number n 1 mol = 6.02  10 23 items…

Slide 1 AP Chemistry Chapter 3 Mr. Solsman Slide 2 Slide 3 Goals of this chapter include: Relating mass to the number of entities Converting mass into a chemical equation…

Slide 1 Unit 1 Calculations Slide 2 Go to question 1 2 3 4 5 6 7 8 In which of the following pairs of gases contain the same number of oxygen atoms? A pencil lead contains…

Slide 1 Slide 2 IIIIIIIV The Mole Molar Conversions Slide 3 A. What is the Mole? n A counting number (like a dozen) n Avogadro’s number (N A ) n 1 mol = 6.02  10 23…

Slide 1 Entry Task: Block 1 Feb 1 st - 2 nd Block 2 Entry Task Question: WRITE THE QUESTION DOWN! How many moles are in 2.57 x10 48 molecules of phosphorus dioxide? Slide…

Slide 1 Solids, Liquids and Gases Solids (s): Molecules are held in place by intermolecular interactions. Liquids (l): Molecules are held next to one another by intermolecular…

Slide 1 Atoms: The building blocks of Matter Counting Atoms Slide 2 Atomic Number The number of protons in the nucleus of each atom Identifies element Periodic table –…

Slide 1 Empirical and Molecular Formulas How to find out what an unknown compound is Slide 2 A chemist obtains a new product  What is the formula for the compound? …

Slide 1 By, Rachel Smith and Matt Rose Slide 2 Basics It is used to find the quantities of materials consumed and produced in chemical reactions Average mass: total mass/amount…