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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
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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 ?
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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.
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Homework 2-9 Book work (pg ) #76 (a,b) #92 ( c,d) #96 page 28 in NB #98 (a,c) #100 (a,b) #101 (a, b) #107
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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
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Agenda 2-9 Do Now HW Check Chemical Reactions review Quiz
Mole Pogil review Mole Notes Mole Foldable
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Quiz Pencil Cell phones away 10 minutes Sheilds up
Reference table provided
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The Mole POGIL Work in groups of four Ambassadors Gatherer Recorder
Reporter Parts 1 and 2 Pg 25
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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
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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 ( ). I didn’t discover it. Its just named after me! Amadeo Avogadro Pg 29
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How to Find Mass on the Periodic Table
Atomic Number Atomic Mass / Mass Number The number of grams in one mole of each element
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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 grams Pg 29
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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
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Practice! Mg NaCl Nitrogen Ammonium Nitrate Calcium Fluoride
Dicarbon tetrachloride Iron (IV) oxide
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The Mole POGIL Work in groups of four Ambassadors Gatherer Recorder
Reporter Parts 3 Pg 25
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M.4.2.1 Foldable Converting Moles to Grams Converting Grams to Moles
Using Avogadro’s Number (1) Using Avogadro’s Number (2)
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Tuesday
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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
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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
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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
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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
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The Mole POGIL Work in groups of four Reader Manager Recorder
Technician / Reporter Parts 3 and 4
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