CHEMICAL QUANTITIES

You need to get…. Calculator Blank sheet of paper Periodic table Polyatomic ion sheets Writing utensil

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.

Representative Particles smallest particle of a substance that still retains the properties of that substance 1. ATOM: element 2. MOLECULE: covalent compound 3. FORMULA UNIT: ionic compound

MOLAR MASS Unit of measurement = g/mol mass, in grams, of 1 mole of any substance Unit of measurement = g/mol

MOLAR MASS Types 1. Gram Atomic Mass: mass, in grams, for 1 mole of an element atomic mass – periodic table

MOLAR MASS Types 2. Gram Formula Mass: ionic compoud

MOLAR MASS Types 3. Gram Molecular Mass: covalent cmpd

Example 1 Calculate the molar mass of iron (II) fluoride. (This is what you did for dominos and homework!) 93.84 g/mol FeF2

Example 2 Calculate the gram molecular mass of glucose, C6H12O6. 180.158 g/mol C6H12O6

Example 3 How many moles is 3.29 g of calcium? 0.0821 mol Ca

Example 4 What is the mass of 0.0352 mol Ni? 2.07 g Ni

Example 5 Calculate the mass of 2.189 moles of aluminum phosphate. 267.0 g AlPO4

Example 6 How many moles is 3.48 g of NaCN? 0.0710 mol NaCN