Presentation is loading. Please wait.

Presentation is loading. Please wait.

CHEMISTRY WEEK 16 to 20 L. R. Inglish Canyon H. S. Science G-101.

Similar presentations


Presentation on theme: "CHEMISTRY WEEK 16 to 20 L. R. Inglish Canyon H. S. Science G-101."— Presentation transcript:

1

2 CHEMISTRY WEEK 16 to 20 L. R. Inglish Canyon H. S. Science G-101

3 JUST DO IT 4 PLUS 2

4

5

6 PERIODIC TABLE: Elements 3A – 8A

7 CHEMISTRY Mr. Inglish LAB REPORT RUBRIC ScoreGENERALPURPOSE, PROCEDURE HYPOTHESISCONCLUSIONLEARNINGQuestions and DataAppendix 5 The Lab Report is complete and professional in its appearance. Purpose, Procedure and Hypothesis are all stated correctly and professional in their appearance. The Conclusion is clearly stated, precise and professional in its appearance. The Statement of Learning is concise, precise and professional in its appearance. The Questions and the Data are accurately completed and found in the Appendix. One or more Appendices are present and properly used. 4 Lab Report is neatly completed and stapled; all parts of the Report are present. Sentence structure and grammar are appropriate. Purpose, Procedure and Hypothesis are all present and stated correctly. The hypothesis is an 'educated guess" about one or more of the Results. Conclusion is clearly stated and is specific to the Laboratory Exercise performed. Statement of Learning clearly states what student learned after completing the Lab Report. Questions and Data are complete, but may not be totally accurate. An Appendix present and is used properly. 3 The The Lab Number, Title, Student Name, Date and Period are present. The Report is stapled. All answers are in sentence form. The Report may be missing one or two sections. Purpose, Procedure and Hypothesis are all present and stated with minor errors. The hypothesis is an 'educated guess" about one or more of the Results. Conclusion is present and is specific to the Laboratory Exercise performed. Statement of Learning is present and is a statement about what student learned after completing the Lab Report. Questions and Data are present, but may not be complete nor accurate. An Appendix may be present, but may, or may not, be used properly. 2 The Title and/or Basic Information may be missing. All pages are uniform and Report is stapled. Not all answers are in sentence form. Two or more sections may be missing. Purpose, Procedure and Hypothesis are mostly present, but may be unclear or incorrect. Conclusion is present, but may not be specific to the Laboratory Exercise performed. Statement of Learning is present, but is not actually a statement about what student learned after completing the Lab Report. Questions and/or Data are present, but may not be complete nor accurate. An Appendix may, or may not, be present. 1 Title and/or Basic Information may be missing. Generally, a messy report with many parts of the lab missing or incomplete. Purpose, Procedure and Hypothesis are unclear, incorrect or not stated. Conclusion may, or may not, be present. Statement of Learning may, or may not, be present. Questions and Data are not present.An Appendix may, or may not, be present.

8 JUST DO IT 4 PLUS 2 WEEK 16… 4 + 2

9 TODAY 11/21/11 1.Daily Quiz and Journal Entry 10 min… 2.Summarize Cornell Notes 5 min… Chapter 8: Molecular Bonding

10 DAILY QUIZ : Week 16 11/21/11 Electron configuration for Carbon Lewis Dot Symbol for Carbon Electron configuration for Oxygen Lewis Dot Symbol for Oxygen Using Lewis Dot Symbols, show how Carbon Monoxide is bonded.

11 11/21/11 Homework Read Section 8.2 In the Chapter 8 Review Packet, answer Sections 8.1 and 8.2.

12 DAILY QUIZ : Week 16 11/22/11 Define a Single Bond. Define a Double Bond. Define a Triple Bond. What is a Coordinate Covalent Bond? Show the electron configuration for Nitrogen and Oxygen. Draw the Lewis Dot Symbol for Nitrogen and Oxygen. Using Lewis Dot Symbols, show how Ammonia (NH 3 ) is bonded.

13 CLASSWORK 11/21/11 Additional comments for the Drawing Lewis Structures Handout… The LESS electronegative element will usually be the central atom (exception: H). Now, follow the steps given in the handout. CCl 4 NCl 3 PF 5

14 DAILY QUIZ : Week 16 11/22/11 Define a Single Bond. Define a Double Bond. Define a Triple Bond. What is a Coordinate Covalent Bond? Show the electron configuration for Nitrogen and Oxygen. Draw the Lewis Dot Symbol for Nitrogen and Oxygen. Using Lewis Dot Symbols, show how Ammonia (NH 3 ) is bonded.

15 11/22/11 Homework Read Section 8.2 In the Chapter 8 Review Packet, answer Sections 8.1 and 8.2. Using Lewis Dot Symbols, draw Colonel HOFBrINCl’s diatomic molecules. Draw the covalent molecular structures for the compounds in the Drawing Lewis Structures Handout.

16 CLASSWORK 11/21/11 Review the Drawing Lewis Structures Handout…Sample Structures Discuss Carbon’s Bond Hybridization Discuss Colonel HOFBrINCl and Diatomic Molecules

17 DAILY QUIZ : Week 16 11/23/11 What type of bonds does Carbon have in CH 4 ? What type of bonds does Carbon have in C 2 H 4 ? What type of bonds does Carbon have in C 2 H 2 ? What is a Coordinate Covalent Bond? Describe the bond in CO (on the board) and explain why?

18 11/23/11 Homework Read Section 8.2 In the Chapter 8 Review Packet, answer Sections 8.1 and 8.2. Using Lewis Dot Symbols, draw Colonel HOFBrINCl’s diatomic molecules. Draw the covalent molecular structures for the compounds in the Drawing Lewis Structures Handout. Chapter 8 Vocabulary Review Chapter 8 Practice Problems Chapter 8 Chapter Quiz : Covalent Bonding Open Book…to be turned in on Monday for grading Chapter 7 & 8 Test on Tuesday Lab on Wednesday Chapter 7 & 8 Review for Test on Monday

19 CLASSWORK 11/23/11 Review HONC and Colonel HOFBrINCl Review the Drawing Lewis Structures Handout … Review “difficult” problems Discuss Carbon’s Bond Hybridization

20 TODAY CHANGES Cornell Notes: Lecture and HW Portfolio Changes

21 END OF LECTURE…

22 REVIEW…

23 Night before Write: “See attached Flow Chart”

24 DAILY QUIZ : Week 17 11/28/11 How many unshared (non-bonded) pairs of electrons are in NF 3 ? Describe the concept of “molecular polarity”. Draw the Lewis Diagram for Hydrogen flouride, HF. – Is it a covalent or ionic compound? Why? – Is it single, double or triple bonded? Why? Draw the Lewis Diagram for Carbon monoxide, CO. – Is it a covalent or ionic compound? Why? – Is it single, double or triple bonded? Why?

25 11/28/11 Homework Lab on Wednesday Chapter 7 & 8 Test on Tuesday

26 Journal of Assignments Percentage Score/Missing Assignments Invitees to Study Session: Lunch or After School TODAY Review Daily Quiz Lecture: Bond Hybridization CLASSWORK 11/28/11

27 How many unshared (non- bonded) pairs of electrons are in NF 3 ? 1. four 2. one 3. two 4. ten 5. twenty 6. thirteen 7. three 8. no pairs

28 Describe the concept of “molecular polarity”. 1. atoms that are bonded together but have unequal numbers of lone pair electrons. 2. similarities in attractions for shared electrons when the electronic and molecular geometries are the same. 3. the optimal Lewis dot structure for any pair of atoms. 4. one atom of a bonded pair of atoms exerting a greater attractive force on the shared electrons. 5. the number of electrons shared by any pair of atoms.

29 DAILY QUIZ : Week 17 11/30/11 What are the 8 most important things to include in the Lab Write up? What is the electron configuration for Ca atom? What is the electron configuration for Ca +2 ion?

30 11/28/11 Homework Lab on Today and Tomorrow Read Chapter 9 section 1 Finish Evidence of Reaction Lab Prep tonight.

31 Daily Quiz Journal of Assignments Percentage Score/Missing Assignments Invitees to Study Session: Lunch or After School TODAY Review Daily Quiz Lecture: Bond Hybridization CLASSWORK 11/28/11

32 Write the Purpose the night before. Translate the Procedure the night before. Write the Hypothesis the night before. Try to answer the Lab Questions the night before. Write the Purpose the night before. Translate the Procedure the night before. Write the Hypothesis the night before. Try to answer the Lab Questions the night before. Write “See attached sheet for Flow Chart.” Write “See attached sheet for Answers to Questions and Data Tables.”

33 Write “See attached page for Flow Chart.” Write the Hypothesis … “If ______, then _______ because _______. Try to answer the Lab Questions the night before. Use a ruler for drawing Data Tables. Write “

34 Family 1A Family 2A ALWAYS FORM IONIC COMPOUNDS ALWAYS

35 Family 7A FORMS IONIC COMPOUNDS ALWAYS

36 ALSO, THE TRANSITIONAL ELEMENTS WILL FORM IONIC COMPOUNDS … AND SOME COVALENT MOLECULES

37 The “COVALENT ZONE”… SIMILAR ELECTRONEGATIVITY CAUSES INCOMPLETE ELECTRON TRANSFER, THUS THE ELECTRONS ARE SHARED.

38 X Mendel’s Genetics Hybrid Sweat Peas Red Sweet Pea White Sweet Pea Pink Hybrid Sweet Pea

39 X Angus Bull Hereford Cow White Faced Hybrid Calf

40 X

41 Mule (burro), Jack Horse, mare X Donkey

42 PROMOTION OF AN ELECTRON sp 3 When bonds are formed, energy is released and the system becomes more stable. If carbon forms 4 bonds rather than 2, twice as much energy is released and so the resulting molecule becomes even more stable. There is only a small energy gap between the 2s and 2p orbitals, and so it pays the carbon to provide a small amount of energy to promote an electron from the 2s to the empty 2p to give 4 unpaired electrons. Thus, the s and the p orbitals now become an sp 3 whose electron cloud is similar to both the s and the p clouds.

43 So, the sp 3 electron clouds look something like … This orbital is 25% s-character and 75 % p-character. σ bond

44 DAILY QUIZ : Week 17 11/29/11 1.Define an sp bond. 2.Define an sp 2 bond. 3.Define an sp 3 bond. 4.Can there be an sp 4 bond? Why? 5.Draw the Lewis Dot Formula for Water. 6.Draw a hybrid of a Great Dane and a Dachshund.

45 p orbitals s orbit sp 3 hybrid orbitals Carbon 1s 1 2sp 3 pzpz Don’t Forget I still have one empty p orbital Carbon 1s 2 2s 2 2p 2

46 So, the sp 3 electron clouds look something like … This orbital is 25% s-character and 75 % p-character. σ bond

47 sp 3 Hybridization

48 End of show check

49 PROMOTION OF AN ELECTRON sp & sp 2 When bonds are formed, energy is released and the system becomes more stable. If carbon forms 4 bonds rather than 2, twice as much energy is released and so the resulting molecule becomes even more stable. There is only a small energy gap between the 2s and 2p orbitals, and so it pays the carbon to provide a small amount of energy to promote an electron from the 2s to the empty 2p to give 4 unpaired electrons. Thus, the s and the p orbitals now become an sp 3 whose electron cloud is similar to both the s and the p clouds.

50 VALENCE-SHELL ELECTRON-PAIR REPULSION THEORY VESPER When bonds are formed, energy is released and the system becomes more stable. If carbon forms 4 bonds rather than 2, twice as much energy is released and so the resulting molecule becomes even more stable. There is only a small energy gap between the 2s and 2p orbitals, and so it pays the carbon to provide a small amount of energy to promote an electron from the 2s to the empty 2p to give 4 unpaired electrons. Thus, the s and the p orbitals now become an sp 3 whose electron cloud is similar to both the s and the p clouds.

51 Bond Angle = °

52 DAILY QUIZ : Week 17 11/29/11 Draw the Lewis Diagram for sodium chloride, NaCl. – Is it a covalent or ionic compound? Why? – Is it single, double or triple bonded? Why? Draw the Lewis Diagram for Carbon dioxide, CO 2. – Is it a covalent or ionic compound? Why? – Is it single, double or triple bonded? Why?

53 11/28/11 Homework Lab on Wednesday

54 Journal of Assignments Chapter 7 & 8 Test Lecture: Sigma Bonding Pi Bonding CLASSWORK 11/30/11

55 Sigma Bonds and Pi Bonds s bonds & p bonds When bonds are formed, energy is released and the system becomes more stable. If carbon forms 4 bonds rather than 2, twice as much energy is released and so the resulting molecule becomes even more stable. There is only a small energy gap between the 2s and 2p orbitals, and so it pays the carbon to provide a small amount of energy to promote an electron from the 2s to the empty 2p to give 4 unpaired electrons. Thus, the s and the p orbitals now become an sp 3 whose electron cloud is similar to both the s and the p clouds.

56 This orbital is 25% s-character and 75 % p-character.

57 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

58

59 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

60

61

62

63

64 DAILY QUIZ : Week 17 12/1/11 What is the formula for Copper (II) chloride? What is the formula for Copper (I) chloride? What are you going to measure in today’s lab? What two sets of data are you going to graph in the lab? When graphing, which axis plots the dependent variable?

65 11/28/11 Homework Complete “Evidence of Interaction” Lab Report Read Chapter 9.1

66 Journal of Assignments Percentage Scorecard/Missing Assignments Daily Quiz Lab: Evidence of Interaction CLASSWORK 11/30/11

67 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

68 DAILY QUIZ : Week 17 12/2/11 What is the formula for Copper (II) chloride? What are 3 observations you made in the lab? What are 2 interpretations you made in the lab? What was your conclusion? What was your learning statement? Write the Single Replacement equation for Al and CuCl 2. When graphing, which axis plots the dependent variable? List, in order, the pages in you Lab Report.

69 12/2/11 Homework Complete “Evidence of Interaction” Lab Report DUE MONDAY Chapter 9 Homework Packet Read Section 9.5

70 Journal of Assignments Percentage Scorecard/Missing Assignments Daily Quiz Lab: Evidence of Interaction Heat of Reaction Equation Review Lecture Chapter 9.2, 9.3 and 9.4 CLASSWORK 12/2/11

71 Δ H = Heat of Reaction Δ H = mC Δ T (Chapter 17) m = mass of substance being measured. C = specific heat of substance being measured. Usually water C = 4.18 Joules / g ° C C = 1.00 calorie / g ° C Δ T = the change in temperature of substance being measured.

72 … Δ H = Heat of Reaction Now, just plug the data in… Points to remember… The mass, Specific Heat ( C ), and Temperature are of the SAME substance. The units cancel out and you are left with Joules or calories (units of heat)

73 All compounds have the cation names first … … then the anion. NaCl MgO NAMING IONIC COMPOUNDS 9.2

74 All non-metal ions end in --ide Left side of the table ALWAYS goes first CaO … CaCl 2 … K 2 S … except carbon CH 4 … CO …CO 2 [Molecular Compounds] How do you balance ionic compounds? NAMING IONIC COMPOUNDS 9.2

75 DAILY QUIZ : Week 18 12/5/11 What is the formula for Copper (I) chloride? What is the formula for Copper (II) chloride? Write the Single Replacement equation for Al and CuCl 2. What is the formula for Ammonium chloride? Define the Law of Definite Proportion.

76 12/5/11 Homework Complete “Evidence of Interaction” Lab Report DUE MONDAY Chapter 9 Homework Packet Read Section 9.5 Chapter 9 : Vocabulary Chapter 9 : Practice Problems Chapter 9 Quiz TOMORROW

77 Journal of Assignments Percentage Scorecard/Missing Assignments Lab Duties Descriptions Daily Quiz Lab: Evidence of Interaction Heat of Reaction Equation Review Lecture Chapter 9.2, 9.3 and 9.4 CLASSWORK 12/5/11

78 All compounds have the cation names first … … then the anion … except Carbon. Prefixes tell how many atoms are in the molecule. Mono-, di-, tri-, tetra- … The number of atoms in the molecule = the subscript. Carbon dioxide …CO 2 Carbonh Tetrabromide Diphosphorus trioxide NAMING MOLECULAR COMPOUNDS 9.3

79 Acids are a Hydrogen atom combined with a non-metal. When anion name ends in –ide … … hydro- ________ -ic When anion name ends in –ite … … ________ -ous When anion name ends in –ate … … ________ -ic -ous is less than -ic NAMING Acids and Bases 9.4

80 Acids are a Hydrogen atom combined with a non- metal. When anion name ends in –ide … … hydro- ________ -ic Chloride … Hydrochloric acid Flouride … Hydroflouric acid When anion name ends in –ite … … ________ -ous Sulfite … Sulfuric acid Nitrite … Nitric acid When anion name ends in –ate … … ________ -ic -ous is less than -ic NAMING Acids and Bases 9.4

81 Acids are a Hydrogen atom combined with a non- metal. When anion name ends in –ate … … ________ -ic Nitrate … Nitric acid Sulfate … Sulfuric acid -ous is less than -ic NAMING Acids and Bases 9.4

82 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf NAMING Acids and Bases Quiz 9.4

83 Bases are when an (OH) -, hydroxide, is added to a cation. NAMING Acids and Bases 9.4

84 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

85 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

86 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

87 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

88 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

89 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

90 Sigma and Pi Bonding Video ang_7e_esp/bom5s2_6.swf

91


Download ppt "CHEMISTRY WEEK 16 to 20 L. R. Inglish Canyon H. S. Science G-101."

Similar presentations


Ads by Google