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CHEM-1111-004 Principles of Chemistry I Laboratory
CHEM 1311 or concurrent enrollment
Basic laboratory experiments supporting theoretical principles presented in CHEM 1311; introduction of the scientific method, experimental design, data collection and analysis, and preparation of laboratory reports.
Student Resources Student Resources Website
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(1 sem hr; 4 lab)
On Campus Course
\ Laboratory Manual: Principles of General Chemistry, A. G. Foster, 2003 Revision
\ Materials supplied by the Student: safety goggles, lab coat or apron, pencil, pen, scratch paper, calculator
\ Upon successful completion of this course, students will:
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1. Use basic apparatus and apply experimental methodologies used in the chemistry laboratory.
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2. Demonstrate safe and proper handling of laboratory equipment and chemicals.
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3. Conduct basic laboratory experiments with proper laboratory techniques.
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4. Make careful and accurate experimental observations.
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5. Relate physical observations and measurements to theoretical principles.
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6. Interpret laboratory results and experimental data, and reach logical conclusions.
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7. Record experimental work completely and accurately in laboratory notebooks and
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communicate experimental results clearly in written reports.
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8. Design fundamental experiments involving principles of chemistry.
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9. Identify appropriate sources of information for conducting laboratory experiments involving
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principles of chemistry.
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In order to receive your AC Connect Email, you must log in through AC Connect at https://acconnect.actx.edu .
If you are an active staff or faculty member according to Human Resources, use "Exchange". All other students, use "AC Connect (Google) Email".
\ Safety equipment must be worn at all times: long pants/skirt (covering at least the top half of the calf), apron or lab coat, hair back, safety goggles, and, if necessary, gloves (will be specified). No open-toed shoes, shoes with holes in them, shoes that leave the top of the foot exposed, hats of any sort, shorts, food or drink are allowed. Anyone acting in an unsafe manner will be warned once with a point deduction if needed. If seen without safety equipment or acting improperly a second time, they will be asked to leave the laboratory. They will be allowed to return within 30 minutes to finish their work, if they can, but they must finish by the time all students who were not disciplined finish. If they are asked to leave more than once for any given experiment, they will receive a zero for that experiment’s lab report. Safety is the MOST important part of lab. You must attend the safety lecture, pass the safety quiz (with an 80) and complete pre lab material before you will be allowed to perform experiments for lab. Any experiments missed by failing to do this will be zeroes and cannot be made up.
\\ Use of previous semester’s work, from whatever source, is considered cheating. If you have access to such papers, turn them in to the instructor at the beginning of the semester and they will be returned at the end. If a student is seen to be using any other student’s work, past or present, they will receive a zero grade for that assignment and it cannot be dropped.
\\ Some labs will be done with partners and all will be done in close proximity to other students. You are encouraged to discuss and/or work with your neighbors; however, working with a student does not give license to simply copy work/data.
\\ You must clean up your area of the lab. It is not the instructor’s or Mr. Crofford’s job to clean up after you. Points will be deducted from the lab if your lab area must be cleaned up for you.
\\ Efficient Use of Time: Please be aware that this class is scheduled for three hours and twenty minutes. This is generally more than enough time to finish most labs, but please expect to be in class for the duration of the scheduled time, if not longer.
\\ Please read and abide by the Student Rights and Responsibilities Handbook.
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\ You must have completed and turned in the pre-lab from the text at the beginning of the lab period in order to be allowed to do the lab—you MUST come to lab prepared. This means all blanks must be filled in with reasonable answers to be allowed to complete the experiment. Generally, completion will be assessed while the class takes the quiz for that experiment. Pre-labs will also be graded for correctness and incorrect answers will lower your lab report grade by up to 20 points. If you arrive tardy and have missed too much of the pre-lab lecture (as determined by the instructor) you will not be allowed to begin the experiment. Please, arrive ON TIME to avoid a zero grade. If you do not complete the lab, you cannot turn in a lab report for that lab, but you may turn in the post lab. A weekly quiz on the pre-lab may be given at the beginning of lab class—you must be prepared for lab before coming to lab. Students are required to turn in the report for an experiment at the end of the lab period. The post-lab is due the following week at the beginning of lab. No late work is accepted. Exact criteria for grading lab reports will be discussed during the pre-lab. Dropping the course is the sole responsibility of the student. The last day to drop without written permission is June 26th.
\\ Failure to leave a clean lab will result in a 10 point deduction on your lab report for that week. If the lab in general is left messy rather than an individual’s area, the whole class may be docked points on their lab report. All students are required to clean their laboratory equipment and check out of their locker. Failure to check out of your locker will result in one letter grade deduction for the course. Failure to officially withdraw will result in a grade of F. Grades are based on 90.00+ = A, 80.00-89.99 = B, 70.00-79.99 = C, 60.00-69.99 = D, and 59.99 and lower = F.
\\ All grey areas of the lab reports must be in pen, only. Whenever writing data or observations down, it must be written directly into your lab book. Scratch paper may be used for calculations, if necessary, but if instructed to show all work, you must include it with the lab report. You CANNOT write data (such as weights, measurements, etc.) on scratch paper then copy it into your lab book. If you make a mistake while writing in pen, simply cross it out once and write the correct number in close-by. Do NOT use correction fluid or tape. If you do make a correction, you MUST come to the instructor and show him the correction so that he can approve it. Please write legibly: if I can’t read an answer, it is wrong.
\\ Some possible areas to lose points in lab reports:
\\ no prelab turned in/insufficient answers [cannot do lab/receive a zero]
\\ incorrect answers on prelab [up to 20 points off lab report grade]
\\ not cleaning up lab [10 points]
\\ error in experimental value [variable (depends on class average, etc.)]
\\ Each incident of these in lab reports:
\\ using white-out [5 points]
\\ writing in pencil in grey area [5 points (even if you go back and write over in ink or erase)]
\\ not crossing out once only [1 to 5 points]
\\ writing data on scratch paper [5 points]
\\ failure to have cross-out approved [5 points]
\\ Each incident of these in lab reports and post labs:
\\ incorrect significant figures [1 points]
\\ missing labels/units [1 point]
\\ missing reaction states [ 1 point]
\\ calculation errors [5 points]
\\ not showing all work when asked [receive no points for that question/part of the lab]
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\\ Grade Disputes: While I encourage you to come to me with questions about answers on assignments anytime, if you wish to dispute a grade or have a grade changed, you must contact me about it within one week of the grade being posted in AC Online or handed back or there will be no change to the grade.
\\ Overall Grade: It is the students’ responsibility to keep track of their overall grade based on Quizzes - 10%, Lab Reports - 65%, Post Labs - 10%, Exam - 15%. The lowest quiz, lab report, and post lab grade will all be dropped and the average for that type of assignment will be based on one less than the total.
\\ Grades are based on 90.00+ = A, 80.00-89.99 = B, 70.00-79.99 = C, 60.00-69.99 = D, and 59.99 and lower = F.
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\ Attendance in the lab is required.
\\ Make-up labs will not occur, but, with prior arrangements (at least A WEEK before) & permission of Mr. Shier and myself, a student may attend another section of the lab under special circumstances. Please be aware that the only option is some time PRIOR to your scheduled lab.
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Date |
Experiment |
Notes/Important Concepts |
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Aug 28 |
Lab. safety & introduction |
· Safety Video · Lab Tour · Safety Quiz |
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Sep 4 |
#1, Density Measurement |
· Significant Figures · Rounding · Scientific Notation · Math and Significant Figures · Measurements and Units · Percent Uncertainty |
| Sep 11 |
#2, Nomenclature Drill |
· Nomenclature Rules · Name Compounds and Writing Formulas |
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Sep 18 |
#6, Determination of Percent Water in a Hydrate |
· How to find % water given a hydrate formula. · Significant Figures · Calculating hydrate and anhydrous |
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Sep 25 |
#7, Stoichiometry of Chemical Reactions (Please remember to make up solution for lab #8) |
· Write balance equation using correct states · Stoichiometric Calculations · Significant Figures · Percent Yield |
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Oct 2 |
#4, Precipitation Reactions (and Ionic Equations) |
· What’s a precipitate? · Differences in molecular, net ionic, and total ionic equations · Solubility rules · Ions vs. elements |
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Oct 9 |
#5, Conductivity in Aqueous Solutions |
· Strong & Weak Acids/Bases · Soluble and Insoluble Salts · Writing Balanced Equations · Reactions with Acids · Strong and Weak Electrolytes |
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Oct 16 & Oct 23 |
#8, Acid Base Titrations and Determination of Equivalent Weight of Unknown Acid
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· Definitions: end point, indicator, standards, equivalent weight, normality · Calculating normality and equivalents · Equivalent weight |
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Oct 30 |
#3, Basic and Acidic Oxides |
· What’s an anhydride? · States of matter and when to use them · Balance Equations · Litmus paper |
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Nov 6 |
#9, Molar Volume of Oxygen |
· Ideal Gas Law · Percent Error |
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Nov 13 |
#10, Equivalent Weight of a Metal |
· Molar Volume of gas at STP |
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Nov 20 |
#11, Preparation and Properties of Colloids |
· Definitions: condensation, dispersion, peptization, emulsion, emulsifying agent, dialysis, Brownian motion, adsorption, protective colloids · Filtration |
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Nov 27 |
Laboratory Exam |
· Comprehensive + Lab Check Out |
\ INFORMATION SHEET/SIGNATURE: You must fill out and return the information sheet for this class (handed out and posted in AC Online). You must also sign it to signify that you have read and understand the syllabus. No graded assignments will be returned to you and no grades will be posted in AC Online until the signed information sheet is returned.
\\ ***This syllabus is subject to change. You will be informed of any changes to the syllabus in class, email, and posting in AC Online.***
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