1 You need to get Calculator Blank sheet
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You need to get…. • • • Calculator Blank sheet of paper Periodic table Polyatomic ion sheets Writing utensil 2
The Mole SI base unit for the amount of matter in an object (mol) • basic unit for chemistry • reactions occur on the molecular level • simplest way to relate reactants and products Matter is made up of different kinds of particles. The term representative particle refers to whether a substance commonly exists as atoms, formula units or molecules. 3
Representative Particles • smallest particle of a substance that still retains the properties of that substance 1. ATOM: ATOM element 2. MOLECULE: MOLECULE covalent compound 3. FORMULA UNIT: ionic compound 4
MOLAR MASS mass, in grams, of 1 mole of any substance • Unit of measurement = g/mol 5
MOLAR MASS Types 1. Gram Atomic Mass: Mass • mass, in grams, for 1 mole of an element • atomic mass – periodic table 6
MOLAR MASS Types 2. Gram Formula Mass: Mass • ionic compoud 7
MOLAR MASS Types 3. Gram Molecular Mass: Mass • covalent cmpd 8
Example 1 Calculate the molar mass of iron (II) fluoride. (This is what you did for dominos and homework!) 93. 84 g/mol Fe. F 2 9
Example 2 Calculate the gram molecular mass of glucose, C 6 H 12 O 6. 180. 158 g/mol C 6 H 12 O 6 10
Example 3 How many moles is 3. 29 g of calcium? 0. 0821 mol Ca 11
Example 4 What is the mass of 0. 0352 mol Ni? 2. 07 g Ni 12
Example 5 Calculate the mass of 2. 189 moles of aluminum phosphate. 267. 0 g Al. PO 4 13
Example 6 How many moles is 3. 48 g of Na. CN? 0. 0710 mol Na. CN 14
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