2.9.15 Pick up turned back papers. Pick up sock and marker. Get a Calculator if you do not have one Do Now (page 27) Write the chemical reaction, predict products and balance : Nickel + Magnesium Chloride 

HW Check 9.11 Write the following skeleton reaction : iron + fluorine  iron(III)fluoride Balance the above reaction Predict the products : calcium + copper(II)bromide  What type of reaction is #3 ?

Today is February 9, 2015 Topic: The Mole Lesson Objectives: SWBAT 2.2.4 Analyze Stoichiometric relatioships inherent in a chemical reaction 2.2.5 Analyze quantitatively the composition of a substance (empirical formula, molecular formula, percent composition, and hydrates) Essential Question: 2.2 Analyze chemical reactions in terms of quantities, product formation, and energy.

Homework 2-9 Book work (pg 346-347) #76 (a,b) #92 ( c,d) #96 page 28 in NB #98 (a,c) #100 (a,b) #101 (a, b) #107

IMPORTANT DATES Monday 2/9 Chemical Reaction Quiz Tuesday 2/10 Tutoring 2:30-3:30 Wednesday 2/11 - HOMEROOM Thursday 2/12 Tutoring 2:30-3:30 Thursday 2/12 Chemical Rxn Test Friday 2/13 – NO SCHOOL

Agenda 2-9 Do Now HW Check Chemical Reactions review Quiz Mole Pogil review Mole Notes Mole Foldable

Quiz Pencil Cell phones away 10 minutes Sheilds up Reference table provided

The Mole POGIL Work in groups of four Ambassadors Gatherer Recorder Reporter Parts 1 and 2 Pg 25

The Mole 1 dozen = 12 1 gross = 144 1 ream = 500 1 mole = 6.02 x 1023 There are exactly 12 grams of carbon-12 in one mole of carbon-12. Pg 29

I didn’t discover it. Its just named after me! Avogadro’s Number 6.02 x 1023 is called “Avogadro’s Number” in honor of the Italian chemist Amadeo Avogadro (1776-1855). I didn’t discover it. Its just named after me! Amadeo Avogadro Pg 29

How to Find Mass on the Periodic Table Atomic Number Atomic Mass / Mass Number The number of grams in one mole of each element

Calculating Formula Mass Calculate the formula mass of carbon dioxide, CO2. Use Mass Number!! 12.01 g + 2(16.00 g) = 44.01 g  One mole of CO2 (6.02 x 1023 molecules) has a mass of 44.01 grams Pg 29

Mole Relationships Liters Mole Grams Atoms or molecules Pg 29 22.4 L 6.02 x 1023 22. 4 L Mole Mole Relationships Atomic Mass Grams Pg 29

Practice! Mg NaCl Nitrogen Ammonium Nitrate Calcium Fluoride Dicarbon tetrachloride Iron (IV) oxide

The Mole POGIL Work in groups of four Ambassadors Gatherer Recorder Reporter Parts 3 Pg 25

M.4.2.1 Foldable Converting Moles to Grams Converting Grams to Moles Using Avogadro’s Number (1) Using Avogadro’s Number (2)

Tuesday 

Calculations with Moles: Converting moles to grams How many grams of lithium are in 3.50 moles of lithium? 3.50 mol Li 6.94 g Li = g Li 24.3 1 mol Li

Calculations with Moles: Converting grams to moles How many moles of lithium are in 18.2 grams of lithium? 18.2 g Li 1 mol Li = mol Li 2.62 6.94 g Li

Calculations with Moles: Using Avogadro’s Number How many atoms of lithium are in 3.50 moles of lithium? 3.50 mol 6.02 x 1023 atoms = atoms 2.07 x 1024 1 mol

Calculations with Moles: Using Avogadro’s Number How many atoms of lithium are in 18.2 g of lithium? 18.2 g Li 1 mol Li 6.022 x 1023 atoms Li 6.94 g Li 1 mol Li (18.2)(6.022 x 1023)/6.94 = atoms Li 1.58 x 1024

The Mole POGIL Work in groups of four Reader Manager Recorder Technician / Reporter Parts 3 and 4