karlin intro ii spring'13.ch.17 echem.pptx
TRANSCRIPT
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INTRODUCTORY CHEMISTRY II 030.102.02 -‐– Spring, 2013 -‐ Sec>on 2
Prof. Kenneth D. Karlin
10:00 am, Monday, Wednesday, Friday Remsen Hall, Room 1, Basement Level
Professor Kenneth D. Karlin Email: [email protected] Office: New Chemistry Bldg (NCB), Room 213
COURSE INFO/ANNOUNCEMENTS –––> BLACKBOARD
hTps://blackboard.jhu.edu/webapps/
(Also, I send email info) 1
CALENDAR First Class: Monday, January 28th Spring Vaca>on: March 18th – 24th Last class: Friday, May 3rd FINAL EXAM: Tuesday May 14th, 9:00 am – noon
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Text or Homework Materials:
(1) Principles of Modern Chemistry by Oxtoby, Gillis, & Campion 6th or 7th Edi>on, Thomson–Brooks/Cole REQUIRED Print or e-‐Book version is OK
(2) Study Guide & Student Solu>ons Manual, Oxtoby, Gillis, & Campion (7th Edi>on) OPTIONAL
(3) OWL access (for 7th Ed. text), for homework assignments REQUIRED
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OWL On-‐Line Homework: Assignment days and due dates to be determined
CPS Units – “Clickers”
Not to be used this semester probably
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Hour “Mid-‐term” Exams:
Schedule Planned (Tenta>ve): Exam 1: Friday, February 22 Exam 2: Friday, March 29 Exam 3: Wednesday, April 24
For each exam, the class will be divided between Remsen 1 and other rooms on campus (to be determined). Listen and watch for announcements.
You must take all three “mid-‐term” exams unless you have a valid wriRen excuse, which may include a doctor/medical note. Without this, a missed exam will receive a grade of zero!
There will be no make-‐up exams. 6
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Hour “Mid-term” Exams, continued: “Cheat Sheet”. You may bring one sheet of paper (‘letter” size, 8” x 11” with handwritten (not copied) material, i.e., with pertinent equations, constants. You should bring a simple calculator (those with wireless or IR communications are not permitted) and pencils to the exam.
Understand ideas & concepts; don’t just memorize formulas.
Practice Exams or Previous Exams, with answers, will be provided to you on BLACKBOARD, to aid your learning of the material and preparation for course examinations.
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Hour “Mid-‐term” Exams, con>nued: Regrading: An exam (except the Final) may be submiRed for re-‐grading if you are certain you deserve more credit. This must be done within one week of when the exams are returned to the class. The Exam paper should be handed to Prof. Karlin accompanied by an aRached sheet that contains concisely wriRen comments explaining where and why a re-‐grading is requested. Please keep in mind that we may re-‐grade the en[re exam. Any altera[on of the exam itself is grounds for an F in the course (see Academic Ethics).
All work must be shown for full or par[al credit. 8
FINAL EXAM
The final exam will cover material from the en>re semester, and be given according to the University Registrar: FINAL EXAM: Tuesday May 14th, 9:00 am – noon
You may bring two sheets of paper with handwriRen material.
Alterna[ve dates or [mes are not available for this Exam. Reserve/arrange your travel home for the vaca[on, early. Departure/travel plans from Bal[more for semester break/vaca[on must accommodate the University Exam schedule, and early travel is not a valid excuse to reschedule or miss the exam.
A valid, wriTen excuse may result in a grade of Incomplete. 9
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Help Sessions / Teaching Assistants (TA's): Help with home-‐work problems and course material: Graduate teaching assistants (TA’s) will be available
Sundays – Thursdays, 6:30 to 8:00 P.M
Remsen Hall, Room 140 (first floor, adjacent to the entrance nearer to the Library)
Make use of their availability !!!
Addi>onal Help: Office of Academic Advising: The Learning Den
hRp://www.jhu.edu/academic-‐assistance Anne Benner, Garland Hall, Suite 300, 410-‐516-‐4839, [email protected]
Office Hours (K.D. Karlin): Drop by, or by appointment (email).
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In addi[on to course specific and departmental support, the following campus services are available:
– Study Consul[ng (hRp://jhu.edu/academic-‐assistance/studyconsul[ng.html)
• In the Study Consul[ng Program, seniors and graduate students meet individually with students to help students on universal academic skills such as [me management, note taking, and organiza[on.
• Contact: Mrs. Fay Day Garland Hall, Suite 3A, 410-‐516-‐5506, [email protected]
– Learning Den Tutoring (hRp://jhu.edu/academic-‐assistance/tutoring.html) • The Learning Den Tutoring Program provides free tutoring for all registered students in the Krieger School and the Whi[ng School. Tutoring is conducted in small groups consis[ng of a maximum of six students from the same course. Tutors review course-‐specific material.
• Contact: Ms. Anne Benner, Garland Hall, Suite 300, 410-‐516-‐8216, [email protected]
Campus Resources
– PILOT Learning (hRp://jhu.edu/academic-‐assistance/pilot.html) • In this peer-‐led-‐team learning program, students are organized into study teams consis[ng of 6-‐10 members who meet weekly to work problems together. A trained student leader acts as captain and facilitates the mee[ngs.
• PILOT Learning will support the following classes this semester: – AS.030.102 Introductory Chemistry II – AS.110.106 Calculus I for Biological Science Majors – AS.110.107 Calculus II for Biological Science Majors – AS.110.109 Calculus II for Physical Science and Engineering – AS.110.202 Calculus III – AS.171.102 General Physics for Physical Science Majors
• Contact: Dr. Laura Foster, Garland 373, 410-‐516-‐4648, [email protected]
– A Place to Talk (hRp://www.jhu.edu/apR/) • A Place to Talk is student-‐to-‐student peer listening group for the Hopkins community. It is an place for anyone to discuss anything, from everyday frustra[ons to serious concerns. Peer listeners are undergraduate students who have been trained to listen and respond without giving advice. All phone calls, e-‐mails, and visits to APTT are always confiden[al.
Campus Resources
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Course Grade: Grade: will be determined from your scores on: • {homework scores} ( ~ 6%) • 3 mid-term exams (~ 54 %) • Final Exam (Cumulative) (~ 40%).
Exam Material emphasizes (a) Lecture Material, (b) Complementary Textbook Material, and (c) Complementary Material from Old Exams There is no set distribution of grades, but typically it falls close to: 20% A, 45 % B, 28 % C, 7 % D & F
The average grade is close to B/B–
Academic Ethics: … Read JHU Policy 13
Chapters/Topics/Syllabus Chapters: 17 (& 11.4), 18, 4, 5, 6, 7, 8, 20, in this order. Topics: Electrochemistry (17, 11.4) Chemical Kine[cs (18) Quantum Mechanics (4) Atomic Structure (5) Review Lewis structures, VSEPR (3.8,3.9) Molecular Structure, Molecular Orbital Theory (6) Transi[on Metals; Coordina[on Complexes (8) Light-‐Molecule Interac[ons; Spectroscopy (20)
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ELECTROCHEMISTRY Chapter 17
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Why Study Electrochemistry? Redox reactions important: (bio)chemistry, industry
• Batteries • Corrosion • Industrial production of
chemicals such as Cl2, NaOH, F2 and Al
• Coal, gasoline combustion à energy
• Biological redox reactions: metabolism
membrane (electrical potential)
The heme group!16
Oxidation – Reduction Reactions Redox Reactions
• OXIDATION—loss of electron(s) by a species; increase in oxida[on number.
• REDUCTION—gain of electron(s); decrease in oxida[on number.
• OXIDIZING AGENT—electron acceptor; species is reduced. • REDUCING AGENT—electron donor; species is oxidized.
Review: Oxida>on Numbers, Oxida>on State (Sec>on 3.10) 17
Oxida>on States/Numbers: Review, next four pages
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Determine the Oxida[on Number of an Atom in a Compound
Also, consider a complex ion, Cr2O72– (dichromate ion)
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OXIDATION-REDUCTION REACTIONS Direct Redox Reac>on
Oxidizing and reducing agents in direct contact. Cu(s) + 2 Ag+(aq) –––> Cu2+(aq) + 2 Ag(s)
Check Oxida>on States and their
changes
22 Stop Jan.30-‐>Feb.1 ‘12