March 5, 2014 (Week 26) AGENDA: 1 – Bell Ringer 2 – Review Homework 3 – Mole Song 4 – CN: Mole to Gram Conversion 5 – Class Practice 6 – Partner Practice.

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Presentation transcript:

March 5, 2014 (Week 26) AGENDA: 1 – Bell Ringer 2 – Review Homework 3 – Mole Song 4 – CN: Mole to Gram Conversion 5 – Class Practice 6 – Partner Practice 7 – Individual Practice Today’s Goal: SWBAT use molar mass to convert from moles to grams. Homework 1. Mole and Mass Conversions: Page 1 (Moles  Grams) 2. Make up last Friday’s Quiz ASAP if you missed it 3. Go get a CALCULATOR if you haven’t yet! 4. Please return my chemistry books if you borrowed one! 5. DUE TODAY: 10.2 CN Check-in, Molar Mass Calculations Practice

Wed. March 5, 2014 (Week 26) Objective: SWBAT use molar mass to convert from moles to grams. Bell Ringer: Use your periodic table to calculate the molar mass of H 2 O. 5 minutes!

4 MINUTES REMAINING…

Wed. March 5, 2014 (Week 26) Objective: SWBAT use molar mass to convert from moles to grams. Bell Ringer: Use your periodic table to calculate the molar mass of H 2 O. 4 minutes!

3 MINUTES REMAINING…

Wed. March 5, 2014 (Week 26) Objective: SWBAT use molar mass to convert from moles to grams. Bell Ringer: Use your periodic table to calculate the molar mass of H 2 O. 3 minutes!

2 MINUTES REMAINING…

Wed. March 5, 2014 (Week 26) Objective: SWBAT use molar mass to convert from moles to grams. Bell Ringer: Use your periodic table to calculate the molar mass of H 2 O. 2 minutes!

1 MINUTE REMAINING…

Wed. March 5, 2014 (Week 26) Objective: SWBAT use molar mass to convert from moles to grams. Bell Ringer: Use your periodic table to calculate the molar mass of H 2 O. 1 minute!!!

30 seconds Remaining…

Wed. March 5, 2014 (Week 26) Objective: SWBAT use molar mass to convert from moles to grams. Bell Ringer: Use your periodic table to calculate the molar mass of H 2 O. 30 seconds!!!

10 Seconds Remaining…

BELL- RINGER TIME IS UP!

March 5, 2014 (Week 26) AGENDA: 1 – Bell Ringer 2 – Review Homework 3 – Mole Song 4 – CN: Mole to Gram Conversion 5 – Class Practice 6 – Partner Practice 7 – Individual Practice Today’s Goal: SWBAT use molar mass to convert from moles to grams. Homework 1. Mole and Mass Conversions: Page 1 (Moles  Grams) 2. Make up last Friday’s Quiz ASAP if you missed it 3. Go get a CALCULATOR if you haven’t yet! 4. Please return my chemistry books if you borrowed one! 5. DUE TODAY: 10.2 CN Check-in, Molar Mass Calculations Practice

Wed. March 5, 2014 (Week 26) Objective: SWBAT use molar mass to convert from moles to grams. Bell Ringer: Use your periodic table to calculate the molar mass of H 2 O. REVIEW

Review Homework: Molar Mass

The Mole Song A Mole is a Unit! M0ek5c

Cornell Notes  Topic: Mole to Grams Conversion  Date: 3/5/2014  Essential Questions:  Why do we need to convert from moles to grams?  How do we use molar mass as a conversion factor?

Cornell Notes  Topic: Mole to Grams Conversion  Date: 3/5/2014  Remember: Molar Mass is the mass of 1 mole of any substance.  1 mole (mol) always = 6.02 x particles  So 1 mol of different substances will have different masses.

Cornell Notes (continued)  Imagine if you want to measure out a 1.5 mole sample of silver metal…?  Could you count out 1.5 moles?  But you can use molar mass to convert moles to grams, and you can measure grams. Molar Mass of Silver = 1.5 mole g Ag 1 mole Ag... NO! x g = 1 mole 1.5 x g = g Ag

Cornell Notes (continued)  If you had a 7.5 mole sample of H 2 O, how many grams would you have? 1. Determine the molar mass. 2. Convert! (Watch units!) 1. H 2 O = 2xH = O = 18.0 g 1 mol 1. H 2 O = 2xH = O = 18.0 g 1 mol (2 x 1.0) mole H 2 O x 18.0 g 1 mol = 7.5 x 18.0 g H 2 O = g H 2 O mole H 2 O x 18.0 g 1 mol = 7.5 x 18.0 g H 2 O = g H 2 O

Reflection (3 min)  Complete the following sentence strands:  We need to convert from moles to grams because.  We use molar mass as a conversion factor by.

Practice Problems  Take out your Homework so that we can do a few problems…  …Together as a class.  …With your partner  …On your own.