GENERAL CHEMISTRY I

SPRING 2016 CHEMISTRY 121 DR. GARY EVETT

PHONE: 423-7565 EXT. 2239 (OFFICE)Faculty Office GETTO 320The best way to contact me is by email: Gary.Evett@wnc.edu

General Informationo Name: General Chemistry Io Discipline: Chemistry (CHEM)o Units (Credits): 4o Schedule History : See when this course was offered over the last three years.o Transfer Information: Courses with numbers 100 to 299: This course is designed

to apply toward a WNC degree and/or transfer to other schools within the Nevada System of Higher Education, depending on the degree chosen and other courses completed. It may transfer to colleges and universities outside Nevada. For information about how this course can transfer and apply to your program of study, please contact a counselor.

o Academic Division: Liberal Arts

Prerequisites and Recommended Courseso Prerequisites: MATH 126 with a grade of C or higher or appropriate score on the

WNC placement exam or equivalent test

Course OutlineI: Catalog Course DescriptionProvides fundamentals of chemistry including reaction stoichiometry, atomic structure, chemical bonding, molecular structure, states of matter and thermochemistry. Three hours lecture/three hours laboratory.

II: Course ObjectivesCHEM 121, General Chemistry I, is the first semester of a one year sequence in general chemistry. The course covers fundamentals of chemistry including reaction stoichiometry, atomic structure, chemical bonding, molecular structure, states of matter and thermochemistry. Three hours lecture and three hours laboratory per week.

Upon successful completion of CHEM 121, students should:

o Understand the principles of chemical reactionso Stoichiometryo Atomic structureo Chemical bondingo Molecular structure

o States of mattero Aqueous solutionso Acid-base chemistryo Redox reactionso Thermochemistryo Applications to biologically important molecules in preparation for pre-nursing/allied

health biology courseso Have practiced the laboratory methods needed to observe and measure the above.

III: Course LinkageLinkage of course to educational program mission and at least one educational program outcome.

General Education Mission:CHEM 121 is a general education class that promotes the development of knowledge, skills, and attitudes that will benefit students in their personal and professional endeavors.

General Education Student Learning Outcome:Students who successfully complete CHEM 121 satisfy the general education learning outcomes of demonstrating that they:

o Can use college-level mathematics skillso Understand the scientific method and the role of science and technology in the modern

worldo Possess adequate problem solving, creative reasoning, and critical thinking skills.

Program Mission for AA/AS degree:CHEM 121 satisfies the A.A./A.S. degree mission by providing academic knowledge and skills for successful transfer students to meet higher educational goals.

Program Student Learning Outcomes for AA/AS degree:Students who successfully complete CHEM 121 will know the subject matter to a level that is appropriate to the emphasis of their degree.

TEXT: The following are bundled in the Fallon Bookstore:

1) Chemistry: Structure and Properties Plus MasteringChemistry with eText—Access Card Package, Tro, Prentice Hall, 2015, Prentice Hall, ISBN-10: 0321729730, ISBN-13: 9780321729736

2) Chemistry the Central Science-Laboratory Experiments, Nelson & Kemp, 2015, 13th edition, ISBN13: 978-0321949912

CALCULATOR: Every student needs a scientific calculator. Students are not allowed to share calculators during quizzes or exams. Programmable calculators are allowed, but unapproved stored information is not allowed. You are not allowed to use preprogrammed equations on an exam. If you use programmable calculators on exams, your screen will be subject to scrutiny. Cell phone calculators are not allowed to be used on exams or quizzes.

HELP: I encourage you to come and see me during my office hours for help. Chemistry tutors are available in the Learning Center. Old exams will be made available as a study tool. To be prepared for an exam you should read the text, and study old exams, notes, quizzes, and assigned homework problems.

CHEMISTRY 121 TUTORS: Check the Learning Center for chemistry tutors and their hours.

ATTENDANCE: Roll will be taken in lecture and lab. You may not miss more than three labs and receive credit for the course. If you miss more than three lectures your grade will be lowered.

OFFICE HOURS: T 4-5PW 1-3PFriday 8-10A

STUDY GROUPS: Study groups are encouraged. “The whole is greater than the sum of its parts.” Many successful students form small study groups.

STUDY SUGGESTIONS: This is a rigorous freshman course. Cramming the night before an exam will not work well in this class. The knowledge you gain is cumulative, therefore you must make a consistent, regular effort to learn the material or else you will end up drowning in the material (like trying to get a drink from a fire hose). Read the chapter before the lecture. Watch for major topics and try to create your own outline of the chapter. Do practice exercises and assigned problems in advance of the lecture presentation insofar as you can. Follow up your study shortly after each lecture. Consistent efforts will bring great rewards. This course is conceptual not memorization.You should study chemistry in one to two hour blocks of time. Spend most of your time solving assigned problems. Review previous exams to see how your knowledge will be tested. Learning chemistry is a “hands on” activity (like learning a musical instrument).Developing chemical logic problem solving skills can be obtained only through working many problems. When you are finished with the assigned problems go on to other advanced problems in the text. In college, for every hour of class time you should be spending at least two hours of study time outside of class.

LECTURES: MW 11-12:15 VRGH 302. Online lecture quizzes will be given almost weekly, on the MasteringChemistry site. Online quizzes are open book, open notes and open people help. Sometimes I will give attendance quizzes in lecture. If you are there you get 10 points and if you are absent you receive a “0”. You must be there the whole lecture to receive the 10 points for an attendance lecture quiz. Students may drop one online lecture quiz.

EXAMS: Four exams will be given throughout the semester in class. You will have a maximum of 1 hour and 15 minutes for the exams. Exams will start at the beginning of the class period, so don’t be late. The lowest of the four exam scores will be dropped. An exam missed for whatever reason will count as that lowest score. Early and make-up exams will not be given. In cases of extended illness please notify me for consideration.

On an exam show your work clearly and completely on the exam in order to receive any partial credit. If the work is not shown neatly and clearly, I will not give partial credit. I do not grade scratch paper. For exams you will receive a periodic table and an equation booklet. If you do not it is your responsibility to ask for these. On exam days I will assign seating for the exam. During the Exam backpacks, notes, and books will be left at the front of the class. You have to turn in your exam before you collect your backpack, notes, and books.

FINAL EXAM: My comprehensive final exam will be given during finals week. A comprehensive American Chemical Society (ACS) Final Exam will also be given in this class. Which ever Final Exam is higher mine or the ACS will count as your final score for 15% of your grade.

Everyone needs to take the ACS final exam for assessment purposes even if it will not be used as your final exam score.

COURSE RULES and ETTIQUITE: Please refrain from talking to your neighbor during the lecture. No texting or cell phone use is permitted in class. Cell phones and PDAs should be turned off during class and during exams. Laptops and iPads are permitted, but they are to be used for course work only during class. Disruptive behavior will not be tolerated.

Students caught cheating will be treated as outlined in Policy No.: 3-4-5 Academic Integrity.

If a student has a disability and requires assistance, contact the Disability Resource Center (Susan Trist) to arrange for accommodations.

LABORATORY Wednesday 1:00-3:45P in VRGH 310. All students are required to have chemistry goggles and a lab coat. These are available in the bookstore. Students will not be admitted to the Lab without goggles and lab coats. There will be a lab quiz each week in lab over the previous weeks experiment. The quiz will cover the data section and the assigned questions from each lab. You will be able to drop two lab quiz scores.At the end of lab please clean up your area, and wash all labware that was used for the period. Use detergent and a brush, and then rinse about 5 times.

GRADING: Your final grade will be computed as follows:

Lecture quizzes 9%Homework 8%Exams 43% (the highest 3 of 4)Final 15% Laboratory 25%

APPROXIMATE GRADE SCALE:A 93-100 C+ 77-79 F < 50 or for cheatingA- 90-92 C 70-75B+ 87-89 C- 65-69B 83-86 D+ 60-64B- 80-82 D 50-59

I have a right to modify this syllabus. You are responsible for any changes I make in class.

Mastering Chemistry HomeworkIf you bought your textbook from the bookstore, mastering chemistry comes with the book. Every student needs access to the mastering chemistry website for the course. If you didn’t get the program with your book you will have to pay a user fee when you register online. Weekly lecture quizzes will be taken online on the masteringchemsitry.com course site. All homework will be graded and submitted using the mastering chemistry website. You are allowed to work together on your homework. The TA’s in the tutoring center may also help you with the homework. The homework needs to be submitted by the due date. All students must have MasteringChemistry. If your computer is not working, your are expected to use another computer to enter your assignment on time. Computers are available in the learning center and in the library.The course ID to login to MasteringChemistry is MCEVETT74904. The course is called CHEM 121 Spring 2016.You are expected to check the masteringchemistry website often for assignments and due dates. At the end of the semester 5% will be added to your homework average. This will is given as a bonus to account for frustration using the program etc…

AUDIT AND W POLICY:

April 1, 2016 Last day to change credit to audit or audit to credit for full-term classes. Change must be made via myWNC.

April 1, 2016 Last day to drop full-term classes with a “W”.

GRADES Your grades for every assignment will be available on CANVAS

CHEM 121 SPRING 2016 FALLONAPPROXIMATE SCHEDULE

DATE CHAPTER TOPICJANUARY______________________________________________________________________________________WEEK 125 1 Atoms27 1 Atoms________________________________________________________________________WEEK 2FEBRUARY1 2 Measurement, Problem-Solving, and the Mole3 2 Measurement, Problem-Solving, and the Mole_____________________________________________________________________________________WEEK 38 Measurement, Problem-Solving, and the Mole10 2 The Quantum-Mechanical Model of the Atom

_____________________________________________________________________________________WEEK 415 3 PRESIDENT’S DAY HOLIDAY17 EXAM I Chapters 1, 2,3 (part) ______________________________________________________________________________________WEEK 522 3 The Quantum-Mechanical Model of the Atom24 4 Periodic Properties of Elements_________________________________________________________________________________WEEK 629 5 Molecules and CompoundsMARCH2 5 Molecules and Compounds______________________________________________________________________________________WEEK 77 6 Chemical Bonding I: Drawing Lewis Structures and Determining Molecular

Shapes9 6 Chemical Bonding I: Drawing Lewis Structures and Determining Molecular

Shapes______________________________________________________________________________________WEEK 814 6 Chemical Bonding I: Drawing Lewis Structures and Determining Molecular

Shapes16 EXAM II Chapters 3 (part), 4, 5, and 6______________________________________________________________________________________WEEK 928 7 Chemical Bonding II: Valence Bond Theory and Molecular Orbital Theory30 8 Chemical Bonding II: Valence Bond Theory and Molecular Orbital Theory______________________________________________________________________________________WEEK 10APRIL4 8 Chemical Reactions and Chemical Quantiities6 8 Chemical Reactions and Chemical Quantiities______________________________________________________________________________________

WEEK 1111 8 Chemical Reactions and Chemical Quantiities13 EXAM III 7 and 8 ______________________________________________________________________________________WEEK 1218 9 Introduction to Aqueous Reactions20 9 Introduction to Aqueous Reactions______________________________________________________________________________________WEEK 1325 10 Thermochemistry27 10 Thermochemistry______________________________________________________________________________________WEEK 14MAY2 11 Gases4 11 Gases______________________________________________________________________________________WEEK 159 EXAM 1V Chapter 9, 10, 1111______________________________________________________________________________________WEEK 1616 FINAL EXAM (Comprehensive)18 FINAL EXAM (Comprehensive)

18 IN LAB ACS National Final (Comprehensive)

Chem 121 Spring 2016Approximate Lab Schedule

________________________________________________________________________WEEK 1JANUARY27 1 Dimensional Analysis________________________________________________________________________WEEK 2FEBRUARY3 Exp. 3 Separation of the Components of a Mixture p. 41______________________________________________________________________________________WEEK 310 Exp. 12 Atomic Spectra and Atomic Structure p. 147______________________________________________________________________________________WEEK 417 Exp. 5 Chemical Formulas p. 55______________________________________________________________________________________WEEK 524 Periodic Properties of Elements (Handout)______________________________________________________________________________________WEEK 6MARCH2 Nomenclature (Handout)______________________________________________________________________________________WEEK 79 Lewis Structures (Handout)______________________________________________________________________________________WEEK 816 Exp. 11 Molecular Geometries of Covalent Molecules p. 129______________________________________________________________________________________WEEK 930 Determination of Phosphorus in Plant Food (Handout)______________________________________________________________________________________WEEK 11APRIL6 Exp. 6 Chemical Reactons of Copper and Percent Yield p. 69______________________________________________________________________________________WEEK 1213 Exp. 21 Reactions in Aqueous Solutions: Metathesis p. 271______________________________________________________________________________________WEEK 1320 Exp. 20 Acid Base Titration p.257______________________________________________________________________________________WEEK 1427 Exp. 28 Heat of Neutralization______________________________________________________________________________________WEEK 15MAY4 Exp. 14 Determination of R: The Gas Law Constant______________________________________________________________________________________WEEK 1611 ACS National Final (Comprehensive)_____________________________________________________________________________________

CHAPTER 1 OUTLINE CHEM 121

1.1 A PARTICULATE VIEW OF THE WORLD

MatterAtomsMoleculesProperties of a substance depend on the structure of the particles that compose them

Chemistry the science that seeks to understand the properties of matter by studying the structure of the particles that compose it.

1.2 CLASSIFYING MATTERSolid, liquid, gas

ElementsCompoundsMixtures

1.3 SCIENTIFIC METHOD

ObservationsHypothesis-TheoryExperimentsScientific laws

1.4 EARLY IDEAS of MATTER DemocritusPlato and Aristotle

1.5 ATOMIC THEORYLaw of Conservation of MassLaw of Definite ProportionsLaw of Multiple Proportions

Dalton’s Atomic Theory

1.6 THE DISCOVERY OF THE ELECTRON

Thomson

Millikan

1.7 THE STRUCTURE OF THE ATOMRutherford

1.8 PROTONS, NEUTRONS, ELECTRONS

Elements defined by protons

Isotopes

1.9 ATOMIC MASS: THE AVERAGE MASS OF AN ELEMENT’S ATOMS

Chem 121Exam 1Fall 2015Chap 1, 2, 3 (part) Name _________________________________

1) 6 points Fill in the blanks in the following table.

Symbol Ar1840 Cu2+¿

❑65 ¿

protonsneutronselectrons

2) 3 points Give the name of the instrument that is used to measure masses of atoms and the percent abundance of isotopes.

3) 3 points Which of the following represent isotopes?

A: X B: X C: X D: XA) A and BB) A and CC) A and DD) C and D

4) 3 points Choose the homogeneous mixture from the list below.A) wineB) mudC) ice teaD) saladE) salsa

5) 3 points Choose the pure substance from the list below.A) coffeeB) a casseroleC) carbon dioxideD) salt waterE) pomegranate juice

6) 3 points Two or more substances in variable proportions, where the composition is constant throughout areA) a compound.B) an element.C) a heterogeneous mixture.D) a homogeneous mixture.

E) a crystalline solid.7) 4 points Calculate the atomic mass of gallium if gallium has 2 naturally occurring isotopes with the following masses and natural abundances.Ga-69 68.9256 amu 60.11%Ga-71 70.9247 amu 39.89%

8) 3 points Ions differ from atoms in their number of A) electrons.B) neutrons.C) protons.D) neutrons and protons.E) electrons and protons.

9) 3 points Which of the following is an example of the law of multiple proportions?A) A sample of chlorine is found to contain three times as much Cl-35 as Cl-37.B) Two different compounds formed from carbon and oxygen have the following mass ratios: 1.33 g O: 1 g C and 2.66 g O: 1 g C.C) Two different samples of table salt are found to have the same ratio of sodium to chlorine.D) The atomic mass of bromine is found to be 79.90 amu.E) Nitrogen dioxide always has a mass ratio of 2.28 g O: 1 g N.

10) 3 points What mass (in mg) does 2.63 moles of nickel have?

11) 4 points How many iron atoms are contained in 354 g of iron?

12) 4 points Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when placed in a graduated cylinder.

13) 4 points What is the volume of titanium( in in3) of 2.53 lbs of titanium? Density of titanium is 4.51 g/cm3.

14) 3 points Read the water level with the correct number of significant figures.

Answer _________________ mL

15) 3 points The average distance between nitrogen and oxygen atoms is 115 pm in a compound called nitric oxide. What is this distance in centimeters?

16) 4 points The recommended infant dose of ibuprofen is 10.0 mg/kg of body mass. The ibuprofen suspension contains 100 mg / 5.0 mL of suspension. Calculate the dose in milligrams for a 16.0-lb infant.

17) 3 points The number of cycles that pass through a stationary point is calledA) wavelength.B) amplitude.C) frequency.D) area.E) median.

18) 4 points Calculate the wavelength (in nm) of light with a frequency of 5.88 × 1014 s-1.

19) 4 points Calculate the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm.

20) 6 points Discuss the contributions that Thomson made to understanding the atom. Discuss

1) the discovery of the electron experiment2) the ratio he discovered3) the plumb-pudding model

21) 4 points Calculate the wavelength of light emitted when an electron in a hydrogen atom makes an n=6 to n=1 transition.

22) 4 points Use the deBroglie matter wave equation to calculate the wavelength of an electron (m = 9.11 × 10-31 kg) moving at 3.66 × 106 m/s. ( 1 J = 1 kg m2/s2)

Matching (3 points)

_____23) Experiments

24) 4 points What is the energy of 1 mol of photons for light with a wavelength of 434 nm ?

25) 4 points Because of the high heat and low humidity in the summer in Death Valley, California, a visitor requires about one quart of water for every two miles traveled on foot. Calculate the approximate number of liters required for a person to walk 25 kilometers in Death Valley.