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March 4, 2014 (Week 26) AGENDA: 1 – Bell Ringer 2 – CN: The Mole and Molar Mass 3 – Brain Pop Video 4 – Practice Problems Today’s Goal: Students will be able to describe the mole and calculate molar mass. Homework 1. Calculating Molar Mass Practice 2. Make up last Friday’s Quiz ASAP if you missed it 3. Go get a CALCULATOR if you haven’t yet! 4. No tutoring today 5. Please return my chemistry books if you borrowed one!

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Tuesday March 4, 2014 (Wk 26) OBJECTIVE S.W.B.A.T describe the mole and calculate molar mass. BELL RINGER Use a conversion factor to calculate the number of inches in 6.8ft. 5 minutes

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Tuesday March 4, 2014 (Wk 26) OBJECTIVE S.W.B.A.T describe the mole and calculate molar mass. BELL RINGER Use a conversion factor to calculate the number of inches in 6.8ft. 4 minutes

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3 MINUTES LEFT! 10/11/2012

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Tuesday March 4, 2014 (Wk 26) OBJECTIVE S.W.B.A.T describe the mole and calculate molar mass. BELL RINGER Use a conversion factor to calculate the number of inches in 6.8ft. 3 minutes

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Tuesday March 4, 2014 (Wk 26) OBJECTIVE S.W.B.A.T describe the mole and calculate molar mass. BELL RINGER Use a conversion factor to calculate the number of inches in 6.8ft. 2 minutes

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1 MINUTE LEFT!!! 10/11/2012

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Tuesday March 4, 2014 (Wk 26) OBJECTIVE S.W.B.A.T describe the mole and calculate molar mass. BELL RINGER Use a conversion factor to calculate the number of inches in 6.8ft. 1 minute!!

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10/11/2012 30 SECONDS LEFT!

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Tuesday March 4, 2014 (Wk 26) OBJECTIVE S.W.B.A.T describe the mole and calculate molar mass. BELL RINGER Use a conversion factor to calculate the number of inches in 6.8ft. 30 seconds!!

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BELL RINGER TIME IS UP!

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Be Engaged! (Off Cell Phones, Heads Up, Answering Questions, Hoods Off Head) Mistakes are Welcome! Be Respectful (Speak politely to peers and teachers!) Use Time Preciously! (Be Efficient, Keep Up) Group Norms

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March 4, 2014 (Week 26) AGENDA: 1 – Bell Ringer 2 – CN: The Mole and Molar Mass 3 – Brain Pop Video 4 – Practice Problems Today’s Goal: Students will be able to describe the mole and calculate molar mass. Homework 1. Calculating Molar Mass Practice 2. Make up last Friday’s Quiz ASAP if you missed it 3. Go get a CALCULATOR if you haven’t yet! 4. No tutoring today 5. Please return my chemistry books if you borrowed one!

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Tuesday March 4, 2014 (Wk 26) OBJECTIVE S.W.B.A.T describe the mole and calculate molar mass. BELL RINGER Use a conversion factor to calculate the number of inches in 6.8ft. REVIEW

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Cornell Notes Topic: The Mole and Molar Mass Date: 3/4/2014 Essential Questions: What is a mole? Why do scientists use moles?

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Cornell Notes Topic: The Mole and Molar Mass Date: 3/4/2014 A mole is a quantity used to measure the amount of matter present. Like a dozen = 12 A mole = 6.02 x 10 23 A dozen doughnuts = 12 doughnuts A mole of carbon = 6.02 x 10 23 atoms (particles) of C What is the mole and how is it defined?

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Brain Pop While watching this video: Take notes on WHY we use the mole and the importance of it. Think about how difficult it would be to conduct experiments without the mole. Brain Pop: Moles

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Cornell Notes (continued) Since the mole is always the same number, a mole of different elements or compounds will have different masses. The mass of 1 mole was defined by Carbon-12. 1 mole of carbon = 12 g_ 1 mol 6.02 x 10 23 atoms carbon = 12 g What is molar mass?

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Cornell Notes (continued) 1. Determine types of atoms in a compound. 2. Find their atomic masses. 3. Sum all masses! Units = g / mol How do you calculate molar mass?

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Reflection (3 min) Complete the following sentence strand: Scientists use moles because__________________.

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Practice Problems Ag = 107.9 g 1 mol Ag = 107.9 g 1 mol NaCl = Na = Cl = 58.5 g 1 mol NaCl = Na = Cl = 58.5 g 1 mol LiNO 3 = Li = N = 3 x O = 68.9 g 1 mol LiNO 3 = Li = N = 3 x O = 68.9 g 1 mol 23.0 35.5 + 6.9 14.0 + (3x16.0)

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Bell Ringer What is a Mole? What is the mass of a NaCl molecule?

Bell Ringer What is a Mole? What is the mass of a NaCl molecule?

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