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Chemistry 103 (Section 001)

Instructor: Dr. Larry Tirri

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OUTLINE

• Introduction to Course– Syllabus– i-Clickers

• What is Chemistry?– Matter defined– Physical vs. Chemical

• Historical Perspectives• The Scientific Method• The Periodic Table

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SYLLABUS

CHEM 103

Section 001

Spring 2012

Course: Preparatory Chemistry

Text: “Basic Chemistry,” Timberlake & Timberlake, Third Edition

e-text and online tutoring, exercises and quizzes can be found at

http://www.masteringchemistry.com/

Lecture: Section 001: MW 2:30 PM – 3:45 PM CEB B154

Instructor: Dr. Larry Tirri

Office: CHE 218

Office Hours: MTWTh 10:00 AM – 11:00 AM (CHE 218 or CHE 109),

and by Appointment. Additional hours whenever the office door is open.

Phone: 895-4281

E-mail: larry.tirri@unlv.edu or via WebCampus

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Course Description & Purpose:

Chemistry 103 (3 credits) is designed for students who wish to qualify for Chemistry 121. Credit is not allowed for both CHEM 103 and 110. The course does not satisfy the General Education Core Science Requirement.

Corequisites:

Enrollment in MATH 096 or placement in MATH 124 or higher.

Course Web Page:

http://www.unlv.edu (homepage), top of page under index and campus map click on box and scroll to WebCampus. Four options will be displayed - click on “University of Nevada, Las Vegas”. The WebCampus homepage will be displayed and will require login and password. For assistance, please call the student help line – 895-0761.

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Learning Objectives and Outcomes:

The learning objectives and outcomes of this course include mastery of the following topics:

* Mathematic Tools / Skills – Metric System & Conversions

* States of Matter

* Electronic structure of atoms

* Bonding and Molecular Structure

* Covalent and Ionic Compounds

* The meaning of chemical formulas and chemical equations

* Chemical calculations - stoichiometry, gases & solutions

* Gas Laws

* Solutions - Qualitative and Quantitative

These topics are covered in Chapters 2-12 in the text.

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Necessities:

An i-clicker will be required for each class to participate in class activities and quizzes.

A scientific calculator will be required, no other electronic device will be allowed for quizzes and exams.

Access to Mastering Chemistry Online Program

http://www.masteringchemistry.com/

An alert state of mind will be most helpful.

A sense of humor will be appreciated by everyone.

PLEASE TURN OFF YOUR CELLULAR PHONES AND PAGERS DURING CLASS.

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Expectations:Students are expected to attend every class. Attendance and class

participation will be monitored and documented using the “i-clickers”. Three or more absences, as documented by the “i-clickers” may result in lowering your final grade.

If you are absent from class, regardless of the reason, you will be responsible for the material covered. However, there will be no make up participation activities, or quizzes.

Disability Resource Center - If you have a documented disability that may require assistance, you will need to contact DRC for coordination in your academic accommodations. DRC is located in the Reynolds Student Services Complex, Suite 137. The phone number is 702 895-0866 or TDD 702 895-0652. You may also visit their web site at: http://studentlife.unlv.edu/disability/

Class participation and questions will be welcome. However, please be courteous and respectful of others during discussions and question / answer sessions. Inappropriate or rude behavior will not be tolerated.

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Policy:

This course will be composed of lectures, homework (see assignments in online Mastering Chemistry), graded in-class quizzes (written and “i-clicker”) and on-line quizzes available through Mastering Chemistry, three – semester exams, and a final exam. See the tentative class calendar. Participation in class activities may help you earn a higher letter grade if you are boarderline.

Generally, quizzes will be worth 10 points each and cover the concepts discussed in class. There will be no make-up quizzes given. The highest ten quiz scores will be used when computing quiz averages, and normalized to 100%, potentially contributing up to 100 points earned toward your semester point total.

Each of the three semester exams [100 points each] will be timed for about 70 minutes. Should the dates for the exams change, however unlikely, ample notice will be given. A make up exam may be given only for special circumstances and when requested in writing

The three exam scores and quiz average will contribute up to 400 points [approx. 66.7%] toward your point total.

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Points earned for homework assignments on the Mastering Chemistry website and any homework assignments submitted in class will be totaled and normalized to 76 points [12.6%] and contribute up to 76 points toward your total points earned for the semester.

The topics covered in this course form the foundation for future topics. Thus all of the material is cumulative and each exam may have questions for which you will need to draw upon information covered by previous chapters or exams. The final exam [124 points or 20.7%] will be cumulative, covering the entire course. You must take the final exam to pass this course.

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Your Final Course Grade will be a letter grade (no S/F grade). Your final grade score will be based upon [total points earned, 600. The following grading scale will be used as a starting point to assign letter grades. The grading scale will never be raised but at my discretion may be lowered (to the advantage of the class) at the end of the semester.

Grade Total Points / % Grade Total Points / %

A 600 - 546

100 – 91.00

C+ 467 - 456

77.99 – 76.00

A- 545 - 534

90.99 - 89.00

C 455 - 414

75.99 – 69.00

B+ 533 - 522

88.99 – 87.00

C- 413 - 402

68.99 – 67.00

B 521 - 480

86.99 – 80.00

D+ 401 - 390

66.99 – 65.00

B- 479 - 468

79.99 – 78.00

D 389 - 342

64.99 – 57.00

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The “15 minute rule” will prevail. If for any reason your instructor cannot make a class or appointment and you have waited 15 minutes, then you may assume that the class or appointment has been cancelled and will be rescheduled at a later time.

You must register in the WebCT part of the class, because grades, announcements and discussions will be posted on the site. Registering for WebCT will be covered during the first and second class of the semester.

You must also register in the Mastering Chemistry online program at the following web address: http://www.masteringchemistry.com/

Cellular phones and pagers must be turned to OFF or SILENT while in class.

Each student is required to have an “i-clicker” to participate in class activities and take quizzes. Only one “i-clicker“ need be purchased from the bookstore since the same “i-clicker“ can be used for more than one course. Each “i-clicker“ will be registered with the monitoring system during the first week of classes.

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Tips for Success:

Attend ALL lectures. Take all quizzes and exams.

KEEP UP with the concepts presented in class. Study as often as possible. A typical rule of thumb is to devote at least two hours of study for each hour of lecture. CHEMISTRY IS CUMULATIVE! Don’t be afraid to ask for help. It is available for the asking. Get help ASAP, do not wait until a day or two before an exam to ask for help. Help may not be available at that time.

The purpose of the online problems and homework is to allow you to practice the kinds of questions that will help you gauge your understanding of the concepts covered in lecture. The assigned problems are the minimum number of problems that you should work in order to master the course concepts. You may find that some exam questions may be similar to these problems while some questions will be worded differently, although cover the same topics and concepts.

Check out the textbook web page at http://www.masteringchemistry.com/ .

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If possible, study with others outside of class. Form a study group. Working with others can be very helpful if each member of the group takes a turn to explain a concept.

You may find studying with a tutor to be helpful. One on one attention may work better for you than working with a group. You can meet with tutors at the Chemistry Department Learning Center in CHE 109

You can also contact the Center for Academic Enrichment and Outreach in the Reynolds Student Services Complex (895-4777), or at their homepage: http://caeo.unlv.edu/tutoring.html for information regarding tutors.

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Academic Dishonesty:Cheating will not be tolerated in this course.

http://studentconduct.unlv.edu/.

Lecture:

As stated above, attendance at lectures is essential and expected. You are responsible for all announcements and concepts covered in lecture including information not covered in the textbook or lecture notes, but presented during class lectures. . To get the most out of lecture, read the chapters and/or suggested pages in your text before coming to lecture. There may be pre-lecture quizzes. Study tip: After lecture, read the text again along with your notes and work the relevant end of chapter problems.

Office Hours:

The days and times of office hours are listed on the first page of the syllabus. Although a recitation section is not officially scheduled, you may consider office hours to be a recitation section. Office hours are for your benefit. It is a time where you can seek help, discuss concepts, develop better understanding of topics. In addition to posted office hours, stop by my office and if the door is open, ask if I am available for questions.

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Week Dates Text Chpt Chapter Titles

1 16-Jan MLK Recess

18-Jan 1 Introduction, Syllabus, iClickers, Element Symbols p 95

2 23-Jan Measurements

25-Jan 2 Measurements

3 30-Jan 3 Measurements

1-Feb 3 Matter & Energy

4 6-Feb 4 Matter & Energy / Atoms & Elements

8-Feb 4 Atoms & Elements

5 13-Feb 5 Electronic Structure & Periodic Trends

15-Feb 5 Electronic Structure & Periodic Trends

6 20-Feb Presidents Day Recess

22-Feb Exam I Chapters 1, 2, 3, 4, 5

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i-clicker Registration

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Definition of ChemistryChemistry is the study of substances in terms of

• Composition What is it made of?

• Structure How is it put together?

• Properties What characteristics does it have?

• Reactions How does it behave withother substances?

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What is it made of? Matter.

Matter is anything that has mass and takes up space.

Matter has both physical and chemical properties

Physical properties are:

Characteristics observed or measured without changing the identity of a substance.

Shape, physical state, odor, boiling and freezing points, density, and color of that substance.

Chemical properties describe the ability of a substance

To interact with other substances, and/or

To change into a new substance.

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Physical Properties of Copper

Copper has physical properties:

• Reddish-orange

• Very shiny

• Excellent conductor of heat and electricity

• Solid at 25C• Melting point 1083C• Boiling point 2567C

Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings

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States of Matter

All substances known as matter exist inone of three forms or states:• Solids

Have definite volumes and shapes• Liquids

Have definite volumes, but take the shapes of containers

• GasesHave no definite volumes or shapes

Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings

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Chemical Properties

Chemical properties describe the ability of a substance

• To interact with other substances• To change into a new substance

Example:

Iron has the ability to form rust

when exposed to oxygen.Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings

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Chemistry 103

This course serves as introduction into the world of chemistry, and includes both chemical and physical processes.

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Historical Perspective

• Ancient Greeks and the 4 basic elements:

Air,

Fire,

Water &

Earth.

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Historical Perspectives

Alchemists

• Attempted to turn base metals into gold

• Attempted to find the “Elixir of Life”

• Attempted to Produce the “Philosopher’s Stone” (base metals to Gold and immortality)

Faust depicted in an etching by Rembrandt van Rijn (circa 1650).

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Scientific Method

The scientific method is the process used by scientists to explain observations in nature.

The scientific method developed out of the methods used by Alchemists.

Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings

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Scientific Method

The scientific method involves:

• Making Observations

• Writing a Hypothesis

• Doing Experiments

• Proposing a Theory

Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings

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Summary of the Scientific Method

Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings

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Periodic Table

Primary resource for a chemist as well as other scientists.

Lists all the known elements in a “periodic way”

Element - a substance that can not be broken down into simpler substances by chemical means.

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Periodic Table

Copyright © 2005 by Pearson Education, Inc.Publishing as Benjamin Cummings

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Symbols for the Elements

The language of Chemistry• H Hydrogen• O Oxygen• Ag Silver• Au Gold• Hg Mercury• He Helium• Na Sodium

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These are the elements and their symbols which you will need to memorize.

See page 95 in your text.