CHEM A Chemistry I
Transcription
1 Columbia College Online Campus P a g e 1 CHEM A Chemistry I Early Fall Session () Monday, August 17 Saturday, October 10, Course Description Fundamental course in the principles of chemistry. Topics include stoichiometry, chemical equations and reactions, properties of gases, properties of solutions, and thermochemistry. Students majoring in Biology or Chemistry must earn a grade of C or higher. Prerequisite: MATH or higher (or ACT math score 21 or higher); CHEM/PHYS (or high school chemistry course with a grade of C or higher). Proctored Exams: Midterm and Final Textbooks Chemistry. By John McMurray and Robert C. Fay 7 th Edition. (). Prentice Hall, Inc. ISBN (Without CD) Note: Please do not purchase the International Version of this textbook, since the order of chapters is not the same. Textbooks for the course may be ordered from MBS Direct. You can order online at (be sure to select Online Education rather than your home campus before selecting your class) by phone at For additional information about the bookstore, visit Course Overview Welcome to Chemistry I Online! Have you ever wondered how to make dry ice or why soda pop fizzes when you open the can? Have you ever marveled at a hot air balloon rising or wondered why diamonds are so hard? We will be exploring these questions and many more in this 8 week chemistry course. Each week we will be using discussions, animations, websites, and our textbook to learn the fundamental concepts of chemistry. Technology Requirements Participation in this course will require the basic technology for all online classes at Columbia College: A computer with reliable Internet access, a web browser,
2 Columbia College Online Campus P a g e 2 Acrobat Reader, Microsoft Office or another word processor such as Open Office. You can find more details about standard technical requirements for our courses on our site. Course Objectives To examine the process of scientific measurement and the properties of matter. To describe the laws of chemical combination and reactions in solution. To analyze and predict energy changes in chemical reactions. To describe the electronic structure of atoms and molecules. To examine properties of liquids and gases, and phase changes. Measurable Learning Outcomes Identify the elements by their symbols. Perform unit conversions. Differentiate between intensive and extensive properties and calculate common examples of each. State and apply the laws of chemical combination. Name and describe subatomic particles. Describe the arrangement of the Periodic Table and describe periodic trends in the properties of elements. Name compounds and polyatomic ions. Differentiate between different types of chemical reactions and balance chemical equations, including redox equations. Explain the mole concept and convert between grams and moles. Calculate theoretical and percent yields for reactions. Calculate concentration of solutions and convert between various units of concentrations. Determine empirical formulas from mass composition and vice versa. Write electron configurations for atoms. Draw Lewis dot structures. Use VSEPR theory to predict molecular geometrics. Describe valence bond and molecular orbital theory. Use Hess s law to calculate enthalpies of reaction. Explain the kinetic theory of gases and calculate properties of ideal gases. Describe intermolecular interactions. Construct and use phase diagrams. Summarize the effect of temperature and pressure on solubility. Define and calculate colligative properties of solutions.
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4 Columbia College Online Campus P a g e 4 6 Discussion 7 10 Discussion Sunday Question/Answer Discussion 6 5 Discussion Sunday Dropbox Assignment 6 10 Dropbox Sunday Quiz 5 30 Quizzes Sunday 7 Discussion 8 10 Discussion Sunday Question/Answer Discussion 7 5 Discussion Sunday Dropbox Assignment 7 10 Dropbox Sunday Quiz 6 30 Quizzes Sunday 8 Discussion 9 10 Discussion Saturday Question/Answer Discussion 8 5 Discussion Saturday Final Exam (Proctored) Quizzes Saturday TOTAL Assignment Overview Text and Website: All class readings should be completed prior to submitting assignments or taking quizzes for the week. Quizzes and exams will be over the readings as well as the websites that you are asked to visit. Discussion Assignments: Must be completed by Sunday, except Week 8 when all assignments are due Saturday, of each assigned week and are worth 10 points. These assignments are specific summaries or problems that will be completed and posted by the student under the appropriate discussion topic. Question/Answer Discussions: All students must participate in the weekly Question/Answer discussions at least once a week. The Question/Answer section of the discussion topic will be a place for you to ask questions about the material and answer those questions for others. The instructor will be answering questions in this discussion, also. Thoughtful participation in these discussions will be worth 5 points a week. Dropbox Assignments: Each Dropbox assignment is graded according to the point system presented in the rubric below in the Grading Criteria section. Each dropbox written assignment will be worth 10 points, assigned on the basis of percent of completeness, correct spelling, and neatness. The dropbox assignments are specific summaries or problems that the student will complete and submit to the Dropbox. Quizzes: There are six (6) quizzes during the session. Quizzes are available Thursday through Sunday at PM Central Time of the week assigned and are located in Quizzes area of the course. All quizzes are multiple choice and will cover textbook material as well as material found in the Content area of the course. Quizzes are worth a maximum of 30 points. Exams: There will be two (2) Proctored exams in this course, the Midterm and the Final exam. Each exam is worth points. The Midterm will be completed during Week 4 and the Final during Week 8. Both exams must be completed under the supervision of a proctor. For more information about proctoring, please see the Proctor Policy below.
5 Columbia College Online Campus P a g e 5 Note: In this course, any plagiarized or recycled work from previous courses will receive no credit. There is a plagiarism tutorial and quiz in the Week 1 module of the Content area of the course it is highly recommended that you complete both at your earliest convenience. Course Schedule Week 1 Introduction, Metric Measurement, and Atoms, Molecules and Ions Readings: Read Chapters 1 and 2 Discussion Assignments: Discussion 1: Introduce yourself on the appropriate topic in the Discussions area of the course, include in your introduction why you are taking this course. Discussion 2: Select an element from the periodic table to research. Use the website provided in the Content area as your aide. Describe chemical characteristics of your chosen element. Include in your description the melting point, boiling point and the uses of the element. Write the electron configuration. Is it a metal or a non metal? Try to select an element that your classmates have not already researched. Post your response to the appropriate topic in the Discussion area. Question/Answer Discussion 1: Participate in the Q&A discussion for the week. Dropbox Assignment 1: Determine the answers to the following conversions. Submit your answers to the Dropbox area by Sunday at PM Central Time. 1. How many milliliters are in 3 Liters? 2. How many microliters are in milliliters? 3. How many milligrams are in grams? 4. How many kilometers are 10, meters? 5. How many centimeters are in millimeters? 6. What is the density of a rock that weighs 30 grams and displaces 10 milliliters of water? 7. How many significant figures are in , , , ? 8. Write the following in scientific notation , 30,.5, How many protons, neutrons, and electrons are in Mg with an atomic mass number of 25, Mg with an atomic mass number of 24, Mg 2+ with an atomic mass number of 26? Name the following: Fe(NO3)3, CaCl2, CO2, MgSO4 Quizzes: Complete Quiz #1 by Sunday at PM Central Time. Please visit all items under Content before completing the quiz. Week 2 Mass Relationships in Chemical Equations and Reactions in Aqueous Solutions Readings: Read Chapters 3 and 4 Discussion Assignments: Discussion 3: Read the article on Avogodro available in the Content area. (1) Summarize what you have read and be sure to define Avogadro s number and answer these questions: 1. How many atoms are in ½ a mole of Calcium? 2. What is the molar mass of Pb(NO3)2, MgCl2, and HCl 3. How many moles are in grams of NaCl?
6 Columbia College Online Campus P a g e 6 4. What are the products whan a strong acid and a strong base react? 5. How many grams are in a 3 Molar solution of CaCl2 in 3 Liters?a (2) How many molecules are in 2 Moles of NaCl? (3) What is the molar mass of HCl, MgCl2, and Pb(NO3)2? Post your summary to the appropriate topic in the Discussion area. Question/Answer Discussion 2: Participate in the Q&A discussion for the week. Dropbox Assignment 2: Submit your answers to the follow conversions to the Dropbox by Sunday at PM Central Time. 1. Determine the empirical formula of the following- a compound that is % C, % O, % Mg. A compound that is 6% H and 94% O, a compound that is % Mg, and % Cl. 2. Visit the website available in the Content and balance 4 of the equations and post your balanced equations in the dropbox. 3. Write out the net ionic equations for the following: 2 Na3PO4 (aq) + 3 CaCl2 (aq) --> 6 NaCl (aq) + Ca3(PO4)2 (s) Quizzes: Complete Quiz #2 by Sunday at PM Central Time. Please visit all items under Content before completing the quiz. Proctor Information Due Submit your proctoring information to the Proctor Information folder in the Dropbox area. If you are proctoring with a Columbia College campus, please submit only the campus name and location. If you are requesting a private proctor, please see review the information in the Proctor Policy below. Class Activities: For a tutorial on how to balance chemical equations review the Class Activity in the Content area under Week 2. Week 3 Periodicity and Ionic Compounds Readings: Read Chapters 5 and 6 Discussion Assignments Discussion 4: Answer/define the following: 1. In the following set of elements, does the atomic radius increase or decrease? Li, Be, B, C, N 2. Define ionization energy 3. Define electron affinity 4. Define Balmer Series Question/Answer Discussion 3: Participate in the Q&A discussion for the week. Dropbox Assignment 3: Submit your answers to following questions to the Dropbox by Sunday at PM Central Time. 1. Write out the electron configurations for the following elements, Chlorine, Calcium, Helium, Sodium, Neon. 2. Which Main Group elements have 1 unpaired electron? Which Main Group elements have 3 unpaired electrons? 3. Describe which orbital has the quantum numbers n=2 and l=1. Quizzes: Complete Quiz #3 by Sunday at PM Central Time. Please visit all items under Content before completing the quiz.
7 Columbia College Online Campus P a g e 7 Week 4 Covalent Bonds and Electron Dot Structures Readings: Read Chapter 7 and 8 Discussion Assignments: Discussion 5: 1. Order the following elements in order of increasing electronegativity- Si, P, Cl, S, Al. 2. Are the following compounds polar covalent or non polar covalent? O2, I2, H2O, H2S? 3. Define the following intermolecular forces- London dispersion, dipole-dipole, hydrogen bonding. 4. What is bond order? Question/Answer Discussion 4: Participate in the Q&A discussion for the week. Dropbox Assignment 4: Submit your answers to following questions to the Dropbox by Sunday at PM Central Time. 1. Describe whether the bonds in the following compounds are ionic, polar covalent, or non-polar covalent: HCl, H2O, I2, NaF, MgO, NaCl. 2. Describe how you determined the types of bonds in the compounds. 3. What are the products of alkali metals with water? What are the products of alkaline earth metals with water? 4. What is the molecular geometry of CO2, SO2, PF5, and H2O? 5. In CH2=CH2, what type of hybrid orbitals are there- sp, sp2 or sp3? Midterm Exam: Complete your Proctored Midterm Exam by Saturday at PM Central Time. To prepare review the Big Worksheet, Chemistry Highlights and all resources in the Content area. Week 5 Thermochemistry Readings: Read Chapter 9 Discussion Assignments: Discussion 6: Describe how a hot pack works, how does a cold pack work? Are these reactions exothermic or endothermic? Include a description of the chemicals used in your answer. Post your answer on the appropriate discussion topic. Question/Answer Discussion 5: Participate in the Q&A discussion for the week. Dropbox Assignment 5: Submit your answers to following questions to the Dropbox by Sunday at PM Central Time. 1. Use the bond dissociation energies found on page of your textbook to calculate the ΔHº in kilojoules for 2NH3(g) + Cl2(g) N2H4(g) + 2HCl (g) Define standard heat of formation? 2. Are the following exothermic or endothermic, an increase or decrease in entropy? Solid turning to gas, gas turning to liquid, liquid turning to solid. 3. Define Hess s Law 4. If it takes 20 Joules of energy to change 5 grams of a substance from 20 C to 25 C, what is the specific heat? Quizzes: Complete Quiz #4 by Sunday at PM Central Time. Please visit all items under Content before completing the quiz. Week 6 Gases and the Gas Laws Readings: Read Chapter 10 in the textbook.
8 Columbia College Online Campus P a g e 8 Discussion Assignment: Discussion 7: Answer the following: 1. What are the components of the ideal gas law and what are their units of measurement? Write out the answer to this question. 2. If I have 16 grams of O2 gas in 2 Liters at Standard Temperature, what is the pressure? 3. What does the line look like on the Pressure vs. Volume graph for gases? 4. True or False? Gas molecules are greatly attracted to each other Gas molecules take up very little space of the volume of the gas The kinetic energy of gas molecules cannot be increased Gas molecules move in straight lines Question/Answer Discussion 6: Participate in the Q&A discussion for the week. Dropbox Assignment 6: Submit your answers to following questions to the Dropbox by Sunday at PM Central Time. 1. Carbonate rocks like limestone (CaCO3) react with dilute acids such as HCl to produce carbon dioxide. CaCO3(s) + 2HCl(aq) CaCl2 (aq) + CO2 (g) + H2O(l). How many grams of CO2 are formed by complete reaction with grams of limestone? What is the volume of CO2 at STP? 2. If we increase the volume of 20 Liters of gas to 40 Liters of gas, what will happen to the pressure? 3. Which will effuse the fastest? N2, O2, or H2? 4. What is the pressure of O2 gas that has a volume of 2 Liters, at 23 C, and weighs 32 grams? Quizzes: Complete Quiz #5 by Sunday at PM Central Time. Please visit all items under Content before completing the quiz. Course Evaluations: Please evaluate the course. A link will be sent to your CougarMail that will allow you to access the evaluation. Week 7 Phase Changes and Solutions and Their Properties Readings: Read Chapters 11 and 12 of the textbook. Discussion Assignments: Discussion 8: Answer the following: 1. What is the triple point of the triple phase diagram mean? 2. If a liquid has a high vapor pressure will it have a high or low boiling point and why? 3. What is the difference between osmosis and diffusion? 4. What are three colligative properties? Question/Answer Discussion 7: Participate in the Q&A discussion for the week. Dropbox Assignment 7: Submit your answers to following questions to the Dropbox by Sunday at PM Central Time. 1. Which is more tightly packed, a solid with one atom per unit cell, a solid where each atom has 8 nearest neighbors, or a solid where each atom has 6 nearest neighbors?
9 Columbia College Online Campus P a g e 9 2. What are three types of solids pure carbon makes? 3. What are two conditions that will allow the most gas to be soluble in a liquid? 4. What affect does outside pressure have on the boiling point of water? Quizzes: Complete Quiz #6 by Sunday at PM Central Time. Please visit all items under Content before completing the quiz. Week 8 Review Readings: Review Chapters of the textbook Discussion Assignments: Discussion 9: Answer the following questions to help review what you ve learned and help you prepare for the final exam. o If a substance has a mass of 50 grams and a volume of 80 mls, what is its density? o Which of the following compounds would not exist MgCl2, CaCO3, Na2Cl. Why? o How does one determine percent yield? o What is the oxidation number of oxygen in NaOH? o What is the electron configuration of Mg 2+? o What is the product of halogens reacting with hydrogen? o Describe in your own words how one determines formal charge using dot structures? o What is the specific heat of a substance that it takes Joules to raise the temperature of 45 grams by 6 degrees Celsius? o Name one condition whereas a gas does not behave in an ideal way. o What is hydrogen bonding? o How do colligative properties affect freezing point? o What hybrid orbitals would be in CH4? o What is the molar mass of Mg(NO3)2? o Which would contribute the most pressure in a tank? 10 grams of H2 gas or 10 grams of O2 gas? Question/Answer Discussion 8: Participate in the Q&A discussion for the week. Final Exam: Complete your Proctored Final Exam by Saturday at PM Central Time. To prepare, review all resources in the Content area. Course Policies Student Conduct Plagiarism All Columbia College students, whether enrolled in a land-based or online course, are responsible for behaving in a manner consistent with Columbia College's Student Conduct Code and Acceptable Use Policy. Students violating these policies will be referred to the office of Student Affairs and/or the office of Academic Affairs for possible disciplinary action. The Student Code of Conduct and the Computer Use Policy for students can be found in the Columbia College Student Handbook. The Handbook is available online; you can also obtain a copy by calling the Student Affairs office (Campus Life) at The teacher maintains the right to manage a positive learning environment, and all students must adhere to the conventions of online etiquette. Your grade will be based in large part on the originality of your ideas and your written presentation of these ideas. Presenting the words, ideas, or expression of another in any form as your own is
10 Columbia College Online Campus P a g e 10 plagiarism. Students who fail to properly give credit for information contained in their written work (papers, journals, exams, etc.) are violating the intellectual property rights of the original author. For proper citation of the original authors, you should reference the appropriate publication manual for your degree program or course (APA, MLA, etc.). Violations are taken seriously in higher education and may result in a failing grade on the assignment, a grade of "F" for the course, or dismissal from the College. Collaboration conducted between students without prior permission from the instructor is considered plagiarism and will be treated as such. Spouses and roommates taking the same course should be particularly careful. All required papers may be submitted for textual similarity review to www.cronistalascolonias.com.ar for the detection of plagiarism. All submitted papers may be included in the www.cronistalascolonias.com.ar reference database for the purpose of detecting plagiarism. This service is subject to the Terms and Conditions of Use posted on the www.cronistalascolonias.com.ar site. Non-Discrimination There will be no discrimination on the basis of sex, race, color, national origin, sexual orientation, religion, ideology, political affiliation, veteran status, age, physical handicap, or marital status. Disability Services Students with documented disabilities who may need academic services for this course are required to register with the Coordinator for Disability Services at () Until the student has been cleared through the disability services office, accommodations do not have to be granted. If you are a student who has a documented disability, it is important for you to read the entire syllabus before enrolling in the course. The structure or the content of the course may make an accommodation not feasible. Online Participation You are expected to read the assigned texts and participate in the discussions and other course activities each week. Assignments should be posted by the due dates stated on the grading schedule in your syllabus. If an emergency arises that prevents you from participating in class, please let your instructor know as soon as possible. Attendance Policy Attendance for a week will be counted as having submitted a course assignment for which points have been earned during that week of the session or if the proctoring information has been submitted or the plagiarism quiz taken if there is no other assignment due that week. A class week is defined as the period of time between Monday and Sunday (except for Week 8, when the week and the course will end on Saturday at midnight). The course and system deadlines are all based on the Central Time Zone. Cougar All students are provided a CougarMail account when they enroll in classes at Columbia College. You are responsible for monitoring from that account for important messages from the College and from your instructor. You may forward your Cougar account to another account; however, the College cannot be held responsible for breaches in security or service interruptions with other providers. Students should use for private messages to the instructor and other students. The class discussions are for public messages so the class members can each see what others have to say about any given topic and respond.
11 Columbia College Online Campus P a g e 11 Late Assignment Policy An online class requires regular participation and a commitment to your instructor and your classmates to regularly engage in the reading, discussion and writing assignments. Although most of the online communication for this course is asynchronous, you must be able to commit to the schedule of work for the class for the next eight weeks. You must keep up with the schedule of reading and writing to successfully complete the class. Any assignment not submitted by PM Central Time on the day due is considered late. Assignments may be submitted but will be penalized as follows. Assignments submitted 1 to 7 days late will incur a 30% reduction of the of the final grade given for the assignment. Assignments 8 or more days late will incur a 60% reduction of the final grade given for the assignment. The late penalty applies to all assignments including quizzes and exams. Late penalties may be waived if extending circumstances occur but you must contact me prior to the due date to make arrangements for late assignments. Course Evaluation You will have an opportunity to evaluate the course near the end of the session. A link will be sent to your CougarMail that will allow you to access the evaluation. Be assured that the evaluations are anonymous and that your instructor will not be able to see them until after final grades are submitted. Proctor Policy Students taking courses that require proctored exams must submit their completed proctor request forms to their instructors by the end of the second week of the session. Proctors located at Columbia College campuses are automatically approved. The use of ProctorU services is also automatically approved. The instructor of each course will consider any other choice of proctor for approval or denial. Additional proctor choices the instructor will consider include: public librarians, high school or college instructors, high school or college counseling services, commanding officers, education service officers, and other proctoring services. Personal friends, family members, athletic coaches and direct supervisors are not acceptable. Additional Resources Orientation for New Students This course is offered online, using course management software provided by Desire2Learn and Columbia College. The Student Manual provides details about taking an online course at Columbia College. You may also want to visit the course demonstration to view a sample course before this one opens. Technical Support If you have problems accessing the course or posting your assignments, contact your instructor, the Columbia College Helpdesk, or the D2L Helpdesk for assistance. Contact information is also available within the online course environment ex Online Tutoring
12 Columbia College Online Campus P a g e 12 Smarthinking is a free online tutoring service available to all Columbia College students. Smarthinking provides real-time online tutoring and homework help for Math, English, and Writing. Smarthinking also provides access to live tutorials in writing and math, as well as a full range of study resources, including writing manuals, sample problems, and study skills manuals. You can access the service from wherever you have a connection to the Internet. I encourage you to take advantage of this free service provided by the college. Access Smarthinking through CougarTrack under Students->Academics->Academic Resources. Grading Criteria GRADE CRITERIA FOR DISCUSSION AND DROPBOX ASSIGNMENTS =A Assignment is on time and answers given for all questions. Answers are complete and concise. 8 = B Assignment is late, but has answers for all questions or, assignment is on time, but answers are not complete. 7 = C Assignment is late, and/or answers are not complete. 6 = D Assignment is late and/or answers are not complete.
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