QUIZ PULL OUT A SEPARATE PIECE OF PAPER 1. Name the 9 Groups on the periodic Table (4pts) 2. Who invented the Periodic Table? (1pt) 3. What are groups 3-12called?(1pt) 4. What are the 3 states of matter?(1pt) 5. What are 2 examples extensive and intensive properties? (4pt) 6. Draw a graph of the water curve from steam to ice and label the phase changes. (6pts) 1. Temp is your y-axis, time is your x-axis

ANSWERS THIS QUIZ IS OUT OF 17 POINTS. Alkali Metals, Alkaline Earth Metals, Transition Metals, Chalcogens, Pnicogens, Halogens, Noble Gasses, Lanthanides, and Actinides. Dmitri Mendeleev Transistion Metals Solid, Liquid, and Gas

Properties used to describe matter can be classified as: 1. Extensive – depends on the amount of matter in the sample - Mass, volume, calories are examples 2. Intensive – depends on the type of matter, not the amount present - Hardness, Density, Boiling Point

Solid Freezing Liquid Condensation Gas TempTemp WATER CURVE Time in minutes

IIIIIIIV MOLAR CONVERSIONS THE MOLE

WHAT IS THE MOLE? A counting number (like a dozen) Avogadro’s number 1 mol = 6.02  items A large amount!!!!

n 1 mole of hockey pucks would equal the mass of the moon! 1 mole of pennies would cover the Earth 1/4 mile deep! n 1 mole of basketballs would fill a bag the size of the earth!

MOLAR MASS Mass of 1 mole of an element or compound. Atomic mass tells the... atomic mass units per atom (amu) – based on Carbon-12 grams per mole (g/mol) Round to 2 decimal places

MOLAR MASS EXAMPLES carbon aluminum zinc g/mol g/mol g/mol

MOLAR MASS EXAMPLES water sodium chloride H2OH2O  2(1.01) = g/mol  NaCl  = g/mol

MOLAR MASS EXAMPLES sodium bicarbonate sucrose  NaHCO 3  (16.00) = g/mol  C 12 H 22 O 11  12(12.01) + 22(1.01) + 11(16.00) = g/mol

MOLAR CONVERSIONS Molar Mass (g/mol) 6.02  particles/mol MASS IN GRAMS MOLES NUMBER OF PARTICLES Molar Volume (22.4 L/mol) LITERS OF GAS AT STP Atoms Formula Units Molecules “MOLE BRIDGE”

MOLAR CONVERSION EXAMPLES How many moles of carbon are in 26 g of carbon? 26 g C 1 mol C g C = 2.2 mol C

MOLAR CONVERSION EXAMPLES How many molecules are in 2.50 moles of C 12 H 22 O 11 ? 2.50 mol 6.02  molecules 1 mol = 1.51  molecules C 12 H 22 O 11

MOLAR CONVERSION EXAMPLES Find the mass of 2.1  molecules of NaHCO  molecules 1 mol 6.02  molecules = 290 g NaHCO g 1 mol

MOLAR VOLUME Avogadro proposed at the same temperature and pressure, equal volumes of gases contain the same number of particles 1 mole of gas at STP (O o C, 1 atm) has a volume of 22.4 liters

MOLAR VOLUME STP: Standard Temperature and Pressure 0 degrees C and 1 atmosphere(atm) SATP: Standard Ambient Temperature and Pressure 25 Degrees C and 1 atm

MOLAR VOLUME A reaction produces 0.82 moles O 2. What volume is this at STP? 0.82mol 22.4 L 1 mole= 18 L O 2

MOLAR VOLUME How many molecules are contained in 4.0 liters of CO 2 at STP? 4.0 L 1 mole 6.02 x molecules 22.4 L 1 mole = 1.1 x molecules CO 2