Bonding - PHA Science

Bonding - PHA Science

A: 8 November 2011 Take out your element facebook page Objective: You will be able to: Review electron configuration, ionization and the valence shell Describe trends in atomic radius and elec tronegativity on the periodic table. Do now: Track your exit ticket (2.10-2.13) With your partner, correct the answers on your exit ticket.

Agenda Do now II. Review for quiz III. Unit 3 Objectives! IV. Trends in atomic radius and electron egativity Homework: Element Facebook Page: t omorrow Unit 2 Quiz Objectives 2.7-2.13 tomorr ow I.

Quiz Review in your notebook 1. 2. 3. 4. 5. 6. 7. 8. Draw the orbital notation for oxygen.

Electrons are represented by ______. Each individual box represents ______. Write the electron configuration notation f or oxygen. Circle the valence shell What does the 1 stand for? s? 2? How many valence electrons does it have? Draw its dot diagram. 9. 10. 11.

12. 13. What do the dots represent? How many protons does oxygen have? Draw a picture of oxygen that shows t he energy levels. Now, turn it into an ion of oxygen. Write the electron configuration for th e oxygen ion.

Write the symbol with the charge for t he oxygen ion. Atoms vs. Ions Venn Diagram What do Group 1 elements have in common? http://www.youtube.com/watch?v=G

VoJZkmAAfA If you finish early Work on your Element Facebook pag e Start on the packet I just left on you r desk Study for a quiz you need to retake Do other work silently A: 9 November 2011

Take Out Homework: Element faceboo k page Objective: You will be able to: show what you know about electron co nfiguration and ions describe and sketch trends in electrone gativity and atomic radius Do now: What is one thing that atoms an d ions have in common? One difference? Agenda

Do now II. Objectives 2.7-2.13 Quiz III. Trends on the periodic table IV. Graphing and analyzing trends: Exampl e V. Finish graphing and analyzing trends Homework: Graphing and Analyzing Trends: tomorro w I. Quiz

When you finish, silently: Turn it over on your desk. Track your 2.1 to 2.6 quiz that you just got ba ck. Keep out your tracking sheet for stamps! Stack up all your Unit 2 papers (Quizzes, Ho mework, Labs) and paperclip them together . Put the Unit 2 Mastery Tracking Sheet on T op! Start the Trends on the Periodic Table worksh eet or

Work on other work Trends on the Periodic Table Atomic Radius (size of the a tom) Atomic radius increases Atomic radius increases Atomic radius As you move down the periodic table, mor

e energy levels are added This increases the size of the atom As you move left to right across a period, more electrons are added to the SAME en ergy level There is increasing attraction between more electrons and the positive nucleus Atom size decreases! Electronegativity The ability of an atom to attract electrons

to itself. Elements that want to lose electrons hav e low electroneg., Elements that want to gain electrons hav e high electroneg. Increases going up a group Increases going across a period The smaller the atom, the easier it can at tract other electrons Most reactive: F Least reactive: Fr

Electronegativity Increases Electronegativity: ability of an atom to attract electrons Electronegativity Increases Trends on the Periodic Table With your partner and your periodic table, complete the front, ranking ea ch row in order of increasing atomic radius.

Then, complete one table on the bac k using the special periodic table Then, well do one graph and analysi s together. Homework Trends in atomic radius worksheet (front + 4 graphs, 4 analysis parag raphs): tomorrow

A: 11 November 2011 Take Out Homework: Trends on the Periodic Table Graphing Objective: You will be able to: differentiate between ionic and coval ent bonding and predict bond type Do now: Write the symbol for the ion formed by calcium. Explain how you determined your answ er.

Agenda Do now, collect homework II. Ionic vs. covalent bonding: exampl es, modeling and practice problems III. Exit Ticket Homework: Week 10/11 Homework #1-12: due Monday I. Modeling Bonding

Ionic Bonding To gain or lose electrons, atoms need to give or take them from other atoms Ionic bond one atom gives one or more electrons to another atom

The oppositely charged ions are attracted to one another (electrostatic attraction) this causes them to become bonded togethe r Ions will transfer electrons (and bond) so that they both get 8 valence e- Ionic Compounds

How do you know if a compound is i onic? 1. One cation (left/middle of periodi c table) + One anion (right of per iodic table or a polyatomic anion) 2. Transfer electrons so that both a toms have a full valence shell. 3. Are bonded by electrostatic attra ction. Color your periodic table

Ionic Bonding F Li Cartooning Ionic Bonding On your Week 10/11 Homework packet Sodium metal reacts with chlo

rine gas to form solid sodium chloride Na+ + Cl- NaCl Na Covalent/Molecular Compounds Two or more elements from the righ t side Two or more nonmetals Share electrons to make full valenc e shells

Dot Diagrams of Covalent Bonds Cl2 F 2 H 2 Modeling Covalent Bonding

Homework Week 10/11 Homework #1-12: due Monday A: 15 November 2011 Take Out Homework: Week 10/11 #1-11 Objective: You will be able to: differentiate between ionic and covalent bonds and write names for ionic compou nds.

Do now: An atom of calcium meets an ato m of sulfur. Describe what happens and what type of bond they make. (2 complete sentences) Agenda Do now/homework check Review ionic vs. covalent bonding Naming ionic compounds: examples a nd practice problems Hand back and track quizzes, celebrat

e progress Homework: Week 10/11 Homework #1 2-13: Weds. Quiz Thurs. Obj. 3.1-3.4 Videos! http://www.youtube.com/watch?v=Q

qjcCvzWwww http://www.youtube.com/watch?v=yj ge1WdCFPs&feature=PlayList&p=8 D43FC9FA07913EF&playnext=1&pl aynext_from=PL&index=23 Ionic or Covalent? In your notebook, copy each example. Then, w rite an I for ionic or a C for covalent 1. NaCl 2. NO2 3. N2Br

4. NaI 5. KNO3 6. CaS 7. H2O 8. Cl2 9. Cu(OH)2 10. CCl4 Naming ionic compounds Write the cation name Name of the element

Write the anion name Beginning of element name + -ide Ex 1: LiCl Ex 2: Al O 2 3 Practice Naming Ionic Compounds 1. 2.

3. 4. 5. 6. 7. 8. CaF2 BeO Li2O KBr Rb2S

Al2O3 SrCl2 MgO Homework Week 10/11 Homework #12-13: Weds. Quiz Thurs. Obj. 3.1-3.4 Videos!

http://www.youtube.com/watch?v=Q qjcCvzWwww http://www.youtube.com/watch?v=yj ge1WdCFPs&feature=PlayList&p=8 D43FC9FA07913EF&playnext=1&pl aynext_from=PL&index=23 Ionic or Covalent? In your notebook, copy each example. Then, w rite an I for ionic or a C for covalent 1. NaCl

2. NO2 3. N2Br 4. NaI 5. KNO3 6. CaS 7. H2O 8. Cl2 9. Cu(OH)2 10. CCl4 A: 16 November 2011

Take Out Homework: Week 10/11 #1 2-13 Objective: You will be able to write formulas and names for ionic c ompounds Do now: Ionic or covalent? a. CaCl 2

b. CO2 c. AlF3 Agenda Do now/homework check II. Exit ticket III. Writing formulas for ionic compounds IV. Practice problems V. Ionic bonding speed dating

VI. Formulas for ionic compounds assignmen t Homework: Week 10/11 Homework p. 4 Quiz tomorrow (Obj. 3.1-3.4) I. Exit Ticket When you finish, paperclip all your u nit 2 materials together and raise yo ur hand. Ill give one person at a time permis sion to put them in your green folder

Writing Formulas for Ionic Compounds Write each ion symbol with the charge 2. Cross the charges down to the botto m of the opposite element 3. Rewrite symbols with subscripts 1. Do not write + or , or 1 Examples: Ex 1: aluminum oxide Ex 2: lithium sulfide Ex 3: magnesium oxide

1. Writing formulas from names 1. 2. 3. 4. 5. 6. 7. 8.

potassium chloride magnesium bromide rubidium sulfide beryllium fluoride sodium oxide magnesium sulfide aluminum oxide aluminum iodide IONS SPEED DATING Fill in your 2 ion cards (6 minutes) Mingle with your classmates to make 10 ionic

compounds. Fill in all four columns of the char t. Cation (+) FIRST! Each correctly named compound will earn you 10 points. Each compound over 10 will earn y ou bonus points! Check to be sure you write the CATION first! If you run out of combinations, trade an ion wi th Objective: a classmate. SWBAT model atomic structure and relate valence

shell electrons to trends on the periodic table. Before the end of the period Stay in your seat and 1. Finish Week 10 HW Page 4 and get it sta mped! 2. Be sure your mastery tracking sheet fro m Unit 2 is stamped 3. Organize your Unit 2 materials and pape r clip them. 4. Leave them in your green folder. (One p

erson up at a time, please) 5. Work quietly on other work Homework Week 10/11 Homework p. 4: tomor row Quiz on 3.1-3.4: tomorrow

A: 17 November 2011 Take Out Homework: Week 10/11 p. 4 Objective: You will be able to: show what you know about ions, electronegati vity, atomic radius, and ionic vs. covalent bond ing. Do now: Find fluorine on the periodic table. a. Write the symbol of the fluoride ion. b. Describe the atomic radius and electronegativi ty of fluorine (big/small, high/low) c. What could fluorine bond with to make an ioni c bond?

Agenda Do now II. Quiz III. Go over homework Homework: None! I. A: 17 November 2011 Take Out Homework: Week 10 pag e4

Objective: You will be able to: write names and formulas for ionic compounds with transition metals. Do now: Write the formula for the c ompound formed by the Fe3+ ion an d the ion formed by chlorine. Agenda Do now/check homework II. Ionic compounds with transition m etals

I. names and formulas III. Practice problems Homework: Week 10/11 Homework p . 5: Fri. I. Quiz 3.1: Predicting and writing symbols f or ions 3.2: Trends for electronegativity and atomic radius 3.3: Ionic vs. covalent bonds

3.4: Predicting from a formula what kind of bond will form. Quiz When you finish the quiz: organize your Unit 2 materials and paperclip them together you

may have already done this Work silently on other work A: 18 November 2011 Objective: You will be able to: write names and formulas for ionic compounds with transition metals a nd polyatomic ions. Do now:

Write the names of the following co mpounds: a. MgCl2 b. K2O Do now answers a. magnesium chloride b. potassium oxide Agenda

Do now II. Ionic compounds with transition metals III. Ionic compounds with polyatomic ions IV. Practice problems V. Start Homework pages 5-6 Homework: Week 10 Homework pages 5 and 6: due Monday Quiz Tuesday: Writing ionic compound for mulas and names I.

Patterns on the Periodic Table So we know that Group 1 elements make 1+ ions Group 2 elements make 2+ ions Group 13 elements make 3+ ions Group 15 elements make 3- ions Group 16 elements make 2- ions Group 17 elements make 1- ions What about

Groups 3 through 12?! What ions do they make?! If we leave them out, they will bes ad. Ionic Compounds with Transition Metals Transition Metals: Groups 3-12 (an d the metals in groups 13-15)

Participate in making ionic compoun ds as cations (+) Can have different charges Use the Stock System to show whic h charge the ion has, using a Roman numeral (1-6: I, II, III, IV, V, VI) For Example The iron ion can have a charge of 2+ or 3+ Fe2+ is written as iron (II) (iron two)

Fe3+ is written as iron (III) (iron three) The tin ion can have a charge of 2+ or 4+ Sn2+ is written as tin(II) Sn4+ is written as tin(IV) Cr, Mn, Fe, Co, Ni, Cu, Au, Hg, Sn, Pb

Examples: Writing formulas Ex 1) iron (II) chloride Ex 2) copper (I) oxide

Ex 3) tin (IV) sulfide Examples: Writing names Ex 1) Fe2O3 Ex 2) PbI2

Ex 3) FeO Practice Problems Write the names or formulas for the followi ng ionic compounds using the stock system 1. CuI2 2. lead (II) sulfide 3. CuBr2 4. iron (II) chloride 5. SnO 6. lead (IV) bromide

7. Sn3P4 8. chromium (III) chloride So far, each ion has been made of ju st one atom that has lost or gained e lectron(s) Can an ion have more than 1 elemen t? yes!

Polyatomic Ions Ions made of more than one element Have an overall charge Ex: NO 3 This is a nitrogen atom, bonded to

three oxygen atoms The whole thing has a charge of 1- Polyatomic Ions List Naming ionic compounds with polyatomic ions Cation name + anion name If the anion is a polyatomic ion, use t he name of the polyatomic ion Ex 1) KNO 3

Ex 2) Ca3(PO4)2 Writing names of ionic compounds Given the formula, write the name: 1. NaNO2 2.

Ca(NO3)2 3. Rb2SO4 4. AlPO4 5.

NH4Cl 6. Al2(CO3)3 7. Mg(OH)2 Writing Formulas for Ionic Compounds with Pol

yatomic Ions Write the symbols/formulas with charges f or the anion and the cation 2. Cross the charge down to the bottom of the other side 1. Do not write the + or 3. Rewrite formula without charges, but wit h the subscripts only Ex 1) sodium sulfate Ex 2) magnesium nitrate Ex 3) magnesium carbonate 1.

Writing Formulas Write formulas for the following ionic com pounds: 1. sodium nitrite 2. sodium nitrate 3. magnesium sulfate 4. aluminum carbonate 5. calcium hydroxide 6. ammonium oxide 7. ammonium chloride 8. magnesium nitrate

Hand in Writing Names and Form ulas Practice Problems sheet Start working on your homework: W eek 10/11 Homework pages 5-6 Homework Week 10 Homework pages 5 and 6 Quiz Tuesday: Writing ionic compou nd formulas and names

Agenda Do now II. Check homework III. Mixed practice: all kinds of ionic compoun ds IV. Exit ticket V. Naming and writing formulas for covalent compounds Homework: Week 10/11 Homework p. 8: Fri Quiz on Naming Ionic Compounds: Fri (just o

bjective 3.5) I. A: 22 November 2011 Take Out Homework: Week 10/11 p. 5-6 Objective: You will be able to name and write formulas for ionic co mpounds Do now: Write the formula for the co mpound tin (IV) carbonate.

Agenda Do now II. Homework check III. Naming/writing formulas for ionic comp ounds: more practice IV. Exit Ticket Homework: Week 10/11 page 7: tomorrow Fix pages 5-6: tomorrow Quiz tomorrow: Naming all kinds of ionic compounds (Objective 3.5) I.

Mixed Practice: Naming Ionic Compounds With your partner, complete this wor ksheet. Be careful, some have transition met als that need a Roman numeral. Some have polyatomic ions! Then, check p. 5-7 of the HW If you have not yet put unit 2 in y our green folder, do it now!

Exit Ticket Objective 3.5 Homework

Week 10/11 Homework page 7: tomor row Fix pages 5-6 of homework: tomorrow Writing Names and Formulas for Ioni c Compounds Worksheet: tomorrow Quiz tomorrow (3.5: naming/writing formulas for all types of ionic compou nds) A: 23 November 2011 Take Out Homework: Writing Names and F

ormulas for Ionic Compounds Worksheet AN D page 7 Objective: You will be able to: write names and formulas for covalent com pounds, including the first 10 hydrocarbons Do now: Write formulas or names: a. b. c. d.

lithium sulfide ammonium oxide Cu3(PO4)2 tin (IV) carbonate Agenda Do now II. Check homework III. Review! IV. Quiz on ionic compounds V. Naming and writing formulas for covalent co

mpounds VI. Practice Problems VII. Exit ticket VIII. Hydrocarbons Homework: Week 10/11 Homework p. 8: Tues. I. Find the mistake! On each card, there is a name or a fo rmula. Then, there is a formula or a name be low but it is wrong!!

Write one sentence to describe the mi stake, then write the correct answer. You have 90 seconds per card! Pass the card back when the timer g oes off. Quiz, then do this, in order: 1. 2. 3. 4.

5. 6. 7. When you finish, turn your quiz over Ill give you back your 3.1-3.4 Quiz Track Objectives 3.1 and 3.4 Leave out your tracking sheet for stamps! Correct your wrong answers on the 3.1 to 3.4 Quiz

Make sure your folder is organized and al l your Unit 2 papers are in your green fol der. Work on something silently Ionic or Covalent? 1. 2. 3. 4. 5. 6.

7. 8. 9. 10. NaCl NO2 N2Br NaI KNO3 CaS H2O

Cl2 Cu(OH)2 CCl4 Naming Covalent Compounds P2O5 What do the subscripts (little numbers) me an?! Subscripts = The number of atoms

of each element!! Use prefixes to communicate how many atoms of each element. Prefix System 1 mono* 2 di 3 tri 4 tetra 5 penta *never use mono if the FIRST eleme

nt listed in a compound has one ato m. The SECOND element gets an -ide ending Examples 1. 2. 3. 4. 5.

6. 7. NO2 CO2 PCl5 P 2S 4 Nitrogen trioxide Carbon monoxide Dinitrogen tetrahydride Write formulas/name these co

valent compounds 1. 2. 3. 4. 5. 6. 7. 8. Dinitrogen monoxide Carbon tetrachloride

Oxygen difluoride Sulfur trioxide Dichlorine octoxide Sulfur dibromide Dioxygen difluoride Xenon tetrafluoride 9. NH3 10.

CH4 11. CF4 12. H2O 13.

P3O5 14. SBr2 15. P2O3 16.

NO C: 23 November 2011 Take Out Homework: Week 10/11 p. 8 Objective: You will be able to: write the names and formulas for the first ten hydrocarbons draw Lewis structures for covalent c ompounds

Do now: Write the name/formula for: a. P4S5 b. nitrogen trifluoride Agenda Do now 2. Check homework 3. Exit ticket on covalent compounds 4. Names and formulas of hydrocarbons 5. Lewis structures examples 6. Lewis structures problems Homework: Week 12/13 Homework pa

ges 1-3 (up to VSEPR theory): Mon. 1. Exit Ticket 1. 2. 3. 4. When you finish, turn it over Remain silent

Track your objectives for the 3.1 to 3.4 Quiz Leave out your tracking sheet for st amps! Hydrocarbons Hydrocarbons Hydrocarbon A combination of hydrogen atoms and carbon atoms covalently bonded together. Alkane A hydrocarbon where there are on

ly single bonds between carbons. Alkanes are said to be saturated with hydro gen atoms there is a hydrogen every plac e you can put one! Methane Dot diagram Draw a dot diagram to represent carb on and figure out how many hydroge n atoms can be bonded to it. Draw t hem. Ethane

Draw a dot diagram to represent carb on bonded to another carbon and fig ure out how many hydrogen atoms t here should be. Propane Draw a dot diagram to represent 3 ca rbon atoms bonded together and fig ure out how many hydrogen atoms t here should be. A: 29 November 2011

Take Out Homework: Week 10/11 pa ge 8 Objective: You will be able to: draw Lewis Dot Structures for covale nt compounds Do now: Write names/formulas for: a. P4S5 b. nitrogen trifluoride c. butane Agenda

Do now II. Check homework III. Track Exit Ticket IV. Hydrocarbons V. Lewis Structures examples Homework: Week 12/13 Homework p ages 1-2: Weds. Quiz on Objectives 3.6-3.8: Thurs. I. Alkane Nomenclature Hydrocarbon Name Formula

1. Methane CH4 2. Ethane C2H6 3. Propane

C3H8 4. Butane C4H10 5. Pentane

C5H12 6. Hexane C6H14 7. Heptane

8. Octane C8H18 9. Nonane C9H20

C7H16 General Formula CnH2n+2 A: 30 November 2011 Take Out Homework: Week 12/13 pages 1-2 Objective: You will be able to: draw Lewis structures for covalent

compounds Do now: Draw the Lewis structure f or H2. Circle all the pairs of electro ns that are part of a covalent bond. Agenda Do now II. Check homework III. Review Lewis Structures IV. Practice Drawing Lewis Structures! V. Exit Ticket

VI. Molecule shapes notes Homework: Week 12/13 Homework pages 2-3: Thurs. Quiz on objectives 3.4 through 3.9 on Friday I. Lewis Dot Structures Show covalent bonding using dots to represent valence electrons!

Examples Draw Lewis structures for the followi ng covalent compounds: 1. Cl2 2. H2O 3. NH3

4. CH4 5. CO2 Lewis Dot Structures Assignment With your partner, draw a Lewis dot structure for each of the covalent co mpounds on your white board.

Every two or three, raise your hand and have me sign your paper. Each correct Lewis Structure = 10 %!! Exit Ticket Front page only!! When you finish, check page 2 of yo ur homework, and complete page 3 due tomorrow!

A: Homework Week 12/13 Homework pages 2-3: T hurs. Quiz on objectives 3.4 through 3.9 o n Friday A: 2 December 2011 Take Out Homework: Week 12/13 pag es 4-5 Lewis structures Objective: You will be able to:

determine the shape and bond angle of a molecule using the VSEPR theory. Do Now: A molecule has four pairs of el ectrons around the central atom, and no ne of them are non-bonding pairs. What shape will this molecule be? What is the angle of the bond? Draw a sketch. Agenda Do now II. Track Exit Ticket

III. Check homework IV. VSEPR Theory Practice Problems V. Exit Ticket: Molecule shapes VI. Quiz Review Stations Homework: Week 12/13 HW pages 4-5, draw molecule shape, label and give bond angle Quiz Tuesday on objectives 3.4-3.9 I. Track Exit Ticket

Keep it in a safe place youll need i t at the end of this period. Homework Answers Lewis structure only So, you are now experts on drawing pictures of molecules Lewis Dot St ructures.

But, molecules arent flat. What DO they look like?! Molecule Shapes How are shapes determined? VSEPR Theory: Valence Shell Elect ron Pair Repulsion Theory Valence Shell electrons in the hig hest energy level Electron Pair

Repulsion pushing away Pairs of electrons want to be as far f rom each other as possible in a mole cule This causes different molecules to h ave different shapes! Non-bonding electrons: pairs of el ectrons that are not part of a bond. Central atom: the atom in the midd le

Does the molecule have four electron pairs around the central atom?** yes no How many non-bonding pairs does it have around the central atom?

0 Tetrahedral 109.5o 1 How many non-bonding pairs does it have around the central atom? 2

Trigonal pyramidal Nonlinear 107o 104o **Double bonds count as ONE electron pair!!

0 1 How many atoms are bonded to the central atom? 2 3 Nonlinear 117o

Linear Trigonal Planar 180o 120o Tetrahedral Four electron pairs No non-bonding pairs

109.5o Trigonal pyramidal Four electron pairs One non-bonding pair 107o Non-linear Four electron pairs Two non-bonding pairs 104o

Linear Less than 4 electron pairs Two atoms bonded to the central atom 180o Trigonal Planar Less than four electron pairs Three atoms bonded to the central a tom 120o Non-linear

One non-bonding pair 117o a. b. c. d. e. f. On your blank paper (each person CCl4 must turn in their own work):

1.Draw the Lewis Structure CS2 2.Determine the shape using your flow chart, and write it down NF3 3.Draw the shape and label the bond BBr3 angle. 4.Make the molecule with your modeling kit. H2S 5.Raise your hand and have me check SeO2 your work before you move on! 6.Pack up your molecule kit neatly! 7.Complete pages 4-5 on your Week

12/13 Homework 8.Study the hydrocarbons Exit Ticket Molecule shapes On the quiz, youll get a flow chart without examples It will have the shape names and b ond angles. Then, organize your folder!

Review Stations 1. 2. 3. 4. Youll have 5 minutes per station. Complete the questions on your ans wer sheet. Then, check your answers! (No pee

king until youve tried your hardes t!) If you finish a station early, work on the homework Incentive For each objective your partner get s mastery on, youll receive a bonus point.

Whats due Your review stations answer sheet will be c ollected in 30 minutes. If you finish a station early quiz each other on the prefixes or hydrocarbon names! Homework: Week 12/13 HW pages 4-5, draw molecule sh apes label molecule shape and bond angle

Quiz Tuesday on objectives 3.4-3.9 Homework Week 12/13 HW pages 4-5, draw m olecule shapes label molecule shape and bond an

gle Quiz Tuesday on objectives 3.4-3. 9 A: 6 December 2011 Take Out Homework: Stations Revie w Activity (I may already have yours.) Objective: You will be able to show w hat you know about names and formul as of compounds, covalent bonding an d molecule shapes. Do now: Track your exit ticket for obj

ectives 3.7, 3.8 and 3.9. Keep your tr acking sheet out! Agenda Do now II. Quiz! Homework: What objectives do you n eed extra help on? What work are you missing? Make a plan to make up work! Check no name work on cabinet on yo

ur own time. I. Quiz 1. 2. 3. When you finish, raise your hand. Organize your handed back work into y our folder.

Extra Credit: Choose one data set and graph it, labeling axes, give it a title calculate the slope of the line write an analysis paragraph to describe the trend and describe the significance of the slope due Monday Homework Graph + Analysis paragraph What objectives do you need extra h elp on? What work are you missing? Make a plan to make up work!

Are any of the papers without names yours?! Extra help today 3:30-4:30 pm. 2 December 2011 Objective: You will be able to: describe current scientific researc h on the production of methane on Mars. Do now: Complete the pre-video qu estions on your handout, #1-5

Agenda Do now II. Video clips and questions III. Article and questions IV. Discussion Homework: None! What objectives and work do you need to do/redo to be successful this quarter?! Email me if you want a copy of a handou t over the weekend!

I. Expectations 1. 2. 3. 4. Carefully preview the questions for each vi

deo clip. Watch each video silently and complete the answers to the questions as you watch. After each video, youll have 3 minutes to work with a partner to complete your answ ers. Make a note of your comments and questio ns on your handout for discussion after th e video. A: 7 December 2011 Objective: You will be able to:

calculate the molar mass of a compound and prepare for our field trip! Do now: a. What is the average atomic mass of oxyg en? b. What is the average atomic mass of chlo rine? c. Where do those masses come from? Ho w are they calculated? Agenda

Do now II. Molar mass notes and examples III. Practice Problems IV. Field trip expectations V. Field trip skills and content practice VI. Graphing Homework: Week 14 Homework p. 1: Thu rs., Biogen Pre-Lab: finish graph Thurs. I. Counting Atoms Make a list of elements with the nu

mber of atoms of each to the right: a. Co b. CO c. CO2 d. C6H12O6 e.

Mg(NO3)2 Practice Problems a. H2 b. H2O c.

MgCl2 d. Al(OH)3 e. Mg3(PO4)2 f.

Ca(NO3)2 The Mole

Atoms are so tiny; how do we quantify thei r masses? The mole: a unit for amount of substance In groups of 6.02 x 1023 atoms or molec ules 6.02 x 1023 atoms/molecules = 1 mole 6.02 x 1023 atoms/molecules = Avogadr os Number Molar Mass

Molar mass is the mass in grams of one mole of a pure substance (units: g/mol) Find the molar mass of Oxygen

Phosphorus Sodium Gold Copper What about the molar mass of compounds? Add up the masses of all the atoms o f each element Examples a. H2

b. CO2 c. Al(OH)3 Practice Problems Calculate the molar mass of: a. H2 b. H2O

c. MgCl2 d. Al(OH)3 e. Mg3(PO4)2 f. Ca(NO3)2 Homework Week 14 Homework p. 1 A: 21 December 2011

Objective: You will be able to: calculate the percent composition of an element in a compound Do now: (5 minutes, silently) Calculate the molar mass of: a. carbon tetrachloride b. sodium carbonate Agenda Do now Do now answers

Percent composition examples Practice Problems Homework work time Homework: Week 14 Homework page 2 Do Now Answers Percent Composition

the percent by mass of each element in a compound percent composition = Example 1 Calculate the percent composition of each element in sodium chloride. Example 2

Calculate the percent composition of each element in aluminum hydroxid e. Practice Problems Calculate the percent composition by mass of each element in: a. H2O b. c.

calcium chloride aluminum nitrate Extension Problem How many grams of aluminum are p resent in 10.0 grams of aluminum p hosphate? Homework

Week 14 Homework page 2 A: 21 December 2011 Objective (copy in your notebook!): You will be able to review molar mass and percent compo sition determine percent sugar in bubble gu m Do now: Calculate the molar mass of

magnesium phosphate. Hint: Write the correct formula first! Agenda Do now II. Review molar mass and percent co mposition III. Percent sugar in bubble gum mini-l ab IV. Goals ticket for lab report writing V. Lab report writing time! (106)

Homework: Lab report Thurs. 12/22 I. Review Molar Mass Percent Composition Week 14 Homework Answers More Practice 1.

2. Calculate the molar mass of octane. Calculate the percent composition of each element in octane. Exit Ticket Molar mass and percent composition Percent Sugar in Bubblegum Lab

1. 2. 3. 4. 5. Select a chewer. Follow the directions carefully. Unless you are using a balance, re main seated.

As soon as you have completed thro ugh step 4, fill in the spreadsheet. This work will be collected at the e nd of 3rd period! A: 20 December 2011 Objective: You will be able to: accomplish a SMART goal for your lab re port! Do now: Track your exit ticket and quiz Leave out your tracking sheet for stamps

Fill out your goals ticket to identify one SMART goal for todays lab report work time. Agenda Do now Goals and tracking Computer lab work time (305) Homework: Lab report due Thurs. 12 /22

Announcements Please use the checklist and attach it to your lab report. You must print out your lab report, staple it, and have it on your desk d uring the Do Now on Thursday. A: 21 December 2011 Objective: (copy in your noteboo k!)You will be able to:

convert from percent composition t o empirical and molecular formulas review Unit 3 objectives Do now: Calculate the molar mass f or calcium nitrite. Then, calculate the percent by mass of the nitrogen only. Agenda Do now II. Questions about molar mass and percent compos

ition? III. Empirical vs. Molecular Formulas IV. Percent composition to Formulas V. Practice Problems VI. Review Unit 3 Homework: Lab report due tomorrow (printed, sta pled, checklist and ready to go!) Week 15 Homework Unit 3 Quiz, 8 Objectives I.

Empirical vs. Molecular Formulas empirical formula: the lowest whol e number ratio of atoms of each ele ment found by doing an experiment Example: CH 2

molecular formula: the actual num ber of atoms of each element in a co mpound Example: C H , C H 2 4 3 6 What is the empirical formula of 1. C6H12O6

2. N2O4 3. C6H14 4. CH4

What is the molecular formula of 1. 2. What is the molecular formula of C H2 with a molar mass of 56.12 g/mo l? What is the molecular formula of C H2O with a molar mass of 60.06 g/ mol?

C: 21 December 2011 Objective: You will be able to: convert from percent composition t o empirical and molecular formula s Do now: a. What is the empirical formula for C 4H12? b.

What is the molecular formula for NO2 with molar mass 92 g/mol? Agenda Do now II. Questions about molar mass and percent co mposition? III. Percent composition to Formulas IV. Practice Problems V. Review Unit 3 Homework: Lab report due tomorrow (printe d, stapled, checklist and ready to go!)

Finish Week 15 Homework: tomorrow Unit 3 Quiz tomorrow I. What if You have percent composition, and n eed to calculate the empirical formul a? Determining an Empirical Formula

1. 2. 3. Determine the formula of a compound that is 42.88% carbon and 57.12% oxygen by mass. Determine the formula of a compound that is 41.39% carbon, 3.48% hydrogen and 55 .13% oxygen by mass. What is the molecu

lar formula if the molar mass is 87.06 g/m ol? In a 10.0 g sample, 0.78 g is carbon and 9. 22 g is chlorine. Determine the empirical formula. Practice Problems 1. 2. 3.

What is the empirical formula of a compo und that is 25.9% nitrogen and 74.1% ox ygen? What is the empirical formula of a compo und that is 79.8% carbon and 20.2% hydr ogen? What is its molecular formula if th e compounds molar mass is 60.16 g/mol? What is the empirical formula of a compo und that is 67.6% Hg, 10.8% S and 21.6 % O?

Unit 3 Review! With your partner, complete these re view problems. Start with the ones that are hard for you/that you need the most help wit h! Stay seated and raise your hand if y ou have questions. Each section completed = 10% 22 December 2011

Take Out Homework: Lab report Objective: You will be able to: show what you know about Unit 3 Objectives Do now: Questions? Agenda Questions? II. Unit 3 Quiz Homework: None! (Though, you may want to study for q

uiz retakes for after the vacation!) I. Quiz Turn it over when you are done. Neatly organize your unit 3 papers a nd paperclip them. Keep this pile at your desk until everyone is done wit h the quiz. Find something to work on silently!!

Homework Lab report due tomorrow printed, stapled, checklist Week 15 Homework front page: tom orrow Quiz on Unit 3: tomorrow A: 14 December 2011 Objective: You will be able to: determine criteria for an excellent graph

create and analyze graphs Do now: On your handout on page 1, list as many criteria of an excellen t graph as you can. Agenda Do now II. Criteria for a Graph III. Graphing a data set and line of best fit IV. Slope, and analyzing a graph V. Practice problem

Homework: Be sure data set from Biogen lab i s graphed and meets all criteria Graph analysis paragraph Plot patients and determine their concentration s of Abeta: Thurs. I. Criteria for an Excellent Graph 1. 2. 3. 4.

5. Labeled axes with units Title Graphed data points, accurately Consistent scale Clear, neat Slope Criteria for an Excellent Analysis 1.

2. 3. 4. A description of what data is shown on the graph. General trend of the line: As ____ _ ____, then _____ _____. Range of the data. Discussion of important points and

outliers. Analysis Paragraph Plotting Unknowns Assignment Complete Data Set 2 on the back of the grap h paper, including an analysis paragraph an d the interpolation questions (e and f). Turn in just the graph: due Thurs. Work on your Biogen graph

determine the concentration of Abeta in ea ch of your four patients using interpolation Make a data table to show this information Biogen graph due Thurs. Homework Data Set 2 on page 3 Biogen graph, including determining the concentration of Abeta in each o f your four patients Due tomorrow

C: 14 December 2011 Take Out Homework: Data Set 2 Grap h and Paragraph Objective: You will be able to use inter polation and a graph to identify unkno wns. Do now: On the green handout, Part I only Silently, on your own. Collected in 7 minutes.

Agenda Do now Interpolating from your line of best fit Secret code to the biogen data Lab report rubric Lab report writing time in 305 Homework: Lab conclusion questions due Thursday Lab report due Thursday, 12/22

Data Set 2 Interpolation Questions If you finish early, determine the con centration of ABeta for all four of th e patients from the Biogen lab Directions: By 3:05 1. 2.

3. 4. 5. Do questions e and f for data set 2. Plot your four patients on your Biogen graph. Determine which of your patients got t he placebo and which got AntiPlaque. Make a table to show the patient numb

er, if the patients got the AntiPlaque, a nd their concentration of Abeta Lab Conclusion Questions: due Thurs. C: 19 December 2011 Objective: You will be able to meet your goal of writing one or more sections of your lab report. Do now: Pick up a laptop and leave it c losed on your desk. Then, complete a goals ticket with a sp ecific goal to complete by the end of th

e period. Then, track Exit Ticket 3.10 and Quiz 3. 4-3.9 Agenda Do now II. Track Objectives III. Lab report work time Homework: Lab report due Thurs. 12 /22 Quiz on Unit 3 objectives: Thurs.

I. Lab Report Rubric Lab report due Thursday 12/22 Attach the checklist, please! This period Use your time wisely. Ask permission to get out of your se at for anything. Work quietly.

Ask questions! Have me read sectio ns! Track Objectives Exit Ticket 3.10 Quiz 3.4-3.9 Leave it out on your desk during wor k time for stamps! Then, start up your computer and ge t to work!

Goals Ticket What will you complete by the end of 8th period? You might not want to start working at the beginning For example, you could start with yo ur procedure summary. Worth a 10 point class work grade. Check in with me by the end of the pe riod about your progress.

To 106!! Quietly, please! Sign in, load up Word, and get starte d immediately! Stay seated, work hard Use me as a resource. Id love to he lp you improve BEFORE the lap repo rt is due.

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