Slide 1 Chapter 3 Mass Relationships in Chemical Reactions Slide 2 Atomic Mass  What is atomic mass?  Mass of an atom in atomic mass units (AMU)  1 AMU is the mass…

Slide 1 1 Chapter 6 Chemical Quantities Slide 2 2 How you measure how much? How you measure how much? n You can measure mass, n or volume, n or you can count pieces. n We…

Slide 1Ch. 10- The Mole Why- Within the next 2 months we will be working with chemical quantities. Determining what a reaction will produce or how much we need to go into…

Slide 1 Aim: What is the Mole? Do Now: Answer should be in the correct number of significant figures. 1.4.9 × 10 2 + 7.9 × 10 3 3. (1.247 × 10 –3 ) ÷ (2.9 × 10 –2…

Slide 1 The Mole Concept Slide 2 What is a mole? IIn chemistry, a mole is a counting unit. Abbreviated mol. 11 mol = 6.022x10 23 representative particles. Avogadro’s…

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 THE MOLE... a unit of counting Slide 2 Review How many oxygen atoms in the following? CaCO 3 Al 2 (SO 4 ) 3 How many ions in the following? CaCl 2 NaOH Al 2 (SO 4…

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 20 Sept. 2011  Objective: You will be able to:  Review making calculations and manipulating measurements  Determine the formula for copper (II) sulfate hydrate…

Slide 1 Stoichiometry: Measurement of Elements Slide 2 Formula Weights Sum of the atomic weights (amu) of each atom in a chemical formula. Called “molecular weight” or…