Degree | Type | Year | Semester |
---|---|---|---|
2502444 Chemistry | FB | 1 | A |
Since it is a first year course, there are no academic prerequisites to enroll.
In any case, it must be taken into account that the subject contains a large part of laboratory sessions and requires a specific regulation. The behavior in the laboratory must follow the Safety Standards in the Teaching Laboratories published by the Chemistry Department.
Before starting the course, students have to fill in the security test that appears on the "Campus Virtual" and, once passed, print and sign the sheet that accredits it. This sheet must be delivered the first day of the laboratory. Without this document you can not do the practices.
The rules can be found at the following address: http://www.uab.cat/doc/DOC_Normativa_Segur_Lab_Docent
During practices, students must wear the lab coat and approved safety glasses. In addition to the usual writing tools, they have to carry (and know how it works) a scientific calculator that can do regression calculations. It is advisable that they go in the laboratory with a laptop to do calculations with Excel
The final objective of the subject is that the student reaches the indicated competences.
The part of Experimentation in the laboratory has some general objectives:
- weigh out
- Cleaning the glass materia
- Measurement and transfer of liquids
- Preparation of solutions
- Heating of substances
- Agitation
- Evaporation
- Crystallization
- Filtering and washing substances
- Simple Extraction
- Thin layer chromatography
- Distillation
- Use of the laboratory notebook
- Graphic, numerical and computer treatment of laboratory data
As specific objectives of each practice:
Practice 1: Data processing
Practice 2: Densities
Practice 3: Precipitation reactions. Limiting reagent concept
Practice 4: Redox reactions. Reaction stoichiometry in aqueous solution
Practice 5: Atomic and molecular orbitals
Practice 6: Molecular geometry. Crystal strings
Practice 7: Determination of atomic and molecular masses
Practice 8: Using the calorimeter to studyphase change and dissolution processes
Practice 9: Determination of heat of reaction and dissolution
Practice 10: Determination of the enthalpy and entropy variation of the urea solution
Practice 11: Liquid-liquid extraction and separation of mixtures
Practice 12: Kinetics of the reaction of methyl violet in basic medium
Practice 13: Measurement of pH. Relative strength of acids and bases
Practice 14: Acid-base volumes. Indicators
Practice 15: Determination of the acidity constant of acetic acid
Practice 16: Solubility and Kps of salts poorly soluble in water. Effect of the common ion
Practice 17: Electrochemical Cells
Practice 18: Synthesis of acetylsalicylic acid
For the part of Computer Resources, the general objective is to provide a solid basis for students in cross-cutting and specific skills in computer tools. It is intended that the students acquire strong notions, both structural and analytical in database management and algorithm.
The subject consists of two differentiated parts: Experimentation in the laboratory (5 ECTS) and Computer Resources (3 ECTS).
Each of the parties has a specific content. The Experimentation part is structured in 4 blocks, and each consists of several practices in the laboratory, except block 2 that consists of two practices in the computer room. The Computer Resources part consists of ....
PRACTICES OF EXPERIMENTATION IN CHEMISTRY
BLOCK 1: Introduction to experimentation in Chemistry
Practice 1: Data processing. Measurement of volumes. Experimental errors. Use of Excel to make graphs and calculations
Practice 2: Densities. Determination of the concentration of a solution from its density. Use of excel to make graphs and linear regressions
Practice 3: Precipitation reactions. Limiting reagent concept. Performance of precipitation reactions of CaCO3
Practice 4: Redox reactions. Stoichiometry of the reactions in aqueous solution. Redox reactions in test tube. Determination of the concentration of a test solution by means of a redox reaction.
BLOCK 2: Atomic structure and link
Practice 5: Atomic and molecular orbitals. Study of simple atomic orbitals. Use of the ChemBio3D program to study the molecular orbitals of homo and heteronuclear diatomic molecules. Calculation of molecular orbitals and use of the HOMO LUMO concept.
Practice 6: Molecular geometry. Structures cirstal·lines. Use of the ChemBio3D program to study geometries of molecules according to the theory of repulsion of the orbitals of the valence shell. Visualization, with models and on the computer, of different ion structures and covalent solids.
BLOCK 3: Thermodynamics and kinetics
Practice 7: Determination of atomic and molecular masses. Determination of the molecular mass of a gas. Determination of the equivalent mass and the atomic mass of a metal.
Practice 8: Useof the calorimeter to study phase change processes. Calibration of a digital thermometer. Calculation of the calorific capacity of the calorimeter. Determination of hot melting ice.
Practice 9: Determination of heat of reaction. Determination of neutralization enthalpies in acid-base reactions and dissolution enthalpies.
Practice 10: Determination of the enthalpy and entropy variation of the urea solution. Calculation of the Gibbs free energy and the reaction constant of the urea solution in water.
Practice 11: Liquid-liquid extraction and separation of mixtures. Separations of known and unknown mixtures of two and three components. Identification by thin layer chromatography.
Practice 12: Kinetics. Kinetics of the reaction of methyl violet in basic medium. Study of reaction kinetics following spectrophotometrically the concentration of methylviolet. Calculation of the order of the reaction and the speed constant.
BLOCK 4: Chemical equilibrium, electrochemistry and organic functional groups
Practice 13: Measurement of pH. Relative strength of acids and bases. Calibration and use of a pH meter. Study of buffer concept. Calculation of the degree of dissociation of a weak acid.
Practice 14: Acid-base volumes. Indicators. Performance of acid-base titrations with indicators and potentiometric monitoring. How to choose the right indicator for a valuation.
Practice 15: Determination of the acidity constant of acetic acid. Application of the method of solutions. Using a graphical method and the least-squares adjustment to find a dissociation constant.
Practice 16: Solubility and Kps of salts poorly soluble in water. Effect of the common ion. Determination of the solubility of PbCl2 in water. Preparation and use of ion exchange resins. Determination of the Kps of PbCl2. Effect of the common ion.
Practice 17: Electrochemical Cells. Construction of galvanic cells. Calculation of potential tables.
Practice 18: Synthesis of acetylsalicylic acid. Obtantion and purification of the product from commercial salicylic acid.
The content of the Computer Resource part includes the following practices:
Block I.1 Basic Excel
Practice 1. Introduction to Excel, data organization, open-import-export data, general presentation of the software, elementary calculations, format and conditional format, adjust decimals, sort order, apply sort filters.
Practice 2. Statistical formulas (variability in software language function), logical formulas.
Practice 3. Graphs, histograms, bars, x-y, line adjustments / trend curve.
Practice 4. Templates and forms.
Block II.1 2D, 3D structures and databases
Practice 5. Introduction 2D molecular drawing.
Practice 6. 3D geometry and exploration of conformations.
Practice 7. Molecular representation: Models, perspectives, animations.
Practice 8. Scifinder.
Practice 9. Safety files.
Block I.2
Practice 10. Dynamic tables.
Practice 11. Data analysis.
Practice 12. Advanced graphs and regressions.
Practice 13. Excel Solver.
Practice 14. Excel in the cloud. Open source equivalents.
Block II.2
Practice 15. Introduction to Linux.
Practice 16. Introduction to Python. Command script interface (IDLE, JUPYTER).
Practice 17. Variables, bookstores, loops.
Practice 18. Functions, objects.
Practice 19. Import and exploitation of scientific Modules.
Practice 20. Python integration in chemical fields.
Practice 21. Definition of projects.
The subject "Experimentation and Computer Resources" has two main parts. One of experimentation that focuses on the work of chemical laboratories. The other of computer resources that is oriented to the acquisition of knowledge and skills of fundamental computer tools to perform data analysis, carry out searches for bibliographic holdings, introduce advanced concepts of security and generation of supporting materials. chemical field (molecular drawing, models).
Experimentation.
The subject "Experimentationand Computer Resources" (8 ECTS), together with the subject "Fundamentals of Chemistry I" and "Fundamentals of Chemistry II (16 ECTS), is part of the" Chemistry "subject of the Chemistry degree, which has a total of 24 ECTS of a basic nature and located in the first year of the Degree.The subjects are totally independent with respect to the evaluation, but they are coordinated, so that the evaluation of the part of the subjects "Fundamentals of Chemistry I and II "which is related to the practices, is done after finishing the corresponding block of practices, so the practices benefit from having the theoretical explanations close to time and serve to finish understanding the theory.Computer Resources.
The Computer Resources part consists of 21 practica with a scheme that follows this model:
1. The student receives the mandatory information for the acquisition of the fundamental theoretical and practical knowledge of the practicum. (Introductory videos by teachers, study documents, internet links, etc.).
2. The student is provided with a series of problems to solve in a period of approximately one week, providing virtual support such as forums and / or tutorials (face-to-face or not, depending on the pandemic situation). The acquisition of the basic practical knowledge of each requires an average time of 2 hours that, if possible and accordingly to the sanitary situation will be able to realize in person in the computer rooms of the Faculty of sciences or of no face-to-face way.
3. For each practicum, students must submit assessments related to the theoretical and practical knowledge of each practice (usually at the end of the week).
The delivery of the works is mandatory and can be done individually or in groups depending on the activity. An unjustified foul implies a zero in practice. There may be additional assessment tests on a timely and surprise basis.
Title | Hours | ECTS | Learning Outcomes |
---|---|---|---|
Type: Directed | |||
Computer classrom sessions/online mentoring (depending on pandemic situation) | 42 | 1.68 | 1, 11, 8, 3, 22, 23, 4, 13, 9, 10, 7, 12, 19, 20, 14, 15, 21, 5, 27, 17, 25, 26 |
Laboratory Practices (depending on the pandemic situation) | 72 | 2.88 | 1, 11, 8, 3, 22, 23, 4, 13, 9, 6, 16, 12, 18, 19, 20, 21, 5, 27, 17, 26 |
Theory lesson | 1 | 0.04 | 11, 9, 6, 27 |
Type: Autonomous | |||
Reading guides and preparation of laboratory practices (experimental part) | 18 | 0.72 | 11, 8, 9, 10, 20, 5, 27 |
Resolució of problems related to learning of the Computational Resources part | 28 | 1.12 | 8, 3, 22, 23, 9, 10, 12, 18, 20, 14, 21, 5, 25, 26 |
Evaluation of all ERI
All the activities that are carried out count for the evaluation.
Both parts of the course have an individual and independent assessment. The final grade is the average of the marks of the two parts of the subject, weighted by the number of credits of each part. A grade of "not presented" will only be possible for cases where the student has not submitted the assessments of more than 4 practices (approximately 20%).
It is necessary to pass both parts to pass the course. The pass is obtained with a 5/10.
Regarding the part of Experimentation in the laboratory: A system of continuous evaluation is followed, without the possibility of re-evaluation with a special work or examination. The minimum grade to pass it is 5 points (out of 10). In this note the most important weight are the reports that are delivered at the end of each practice (weight 80%). The report must put the experimental results obtained into practice and answer the questions asked, leaving a record of the necessary graphs and calculations. The methodology followed for the answers, the way in which the answers are communicated and the goodness of the experimental data found are assessed. Preliminary tests will also be taken into account (before starting each practice) to show that the reports and the work attitude in the laboratory have been read (weight 20%). Failure to attend the correction and comment session of the blog practices has a penalty of 1 point (out of 10) on the blog note. The final grade for this part will be the average of the grades for all blocks.
Attendance is mandatory. An unjustified misconduct implies a zero of practice.
Laboratory Safety Warning: A student who is involved in an incident that may have serious safety consequences may be expelled from the laboratory and suspended from the subject.
Regarding the part of Computer Resources: RI consists only in the delivery of solutions of problems (generally by means of online proofs) for each one of the 21 practices. The grades for each practice will have an identical weight on the final grade of RI. For each block, the lowest score will be removed with the understanding that a non-submitted one will be scored with a 0.
Failure to exceed a minimum of 5/10 implies suspension. The non-delivery of 5 or more works of the 21 implies not passing of this part and therefore of all the matter.
Title | Weighting | Hours | ECTS | Learning Outcomes |
---|---|---|---|---|
Practice Report (part Experimentation) | 80% | 15 | 0.6 | 1, 11, 8, 3, 23, 4, 13, 9, 10, 6, 16, 2, 24, 19, 20, 21, 5, 27, 17, 26 |
Preparation of practices. Pre-laboratory exercise (Experimentation part) | 20% | 3 | 0.12 | 11, 3, 6, 5, 27 |
assessment in the form of tests (Computational Resuorces part) | 100% | 21 | 0.84 | 8, 22, 10, 7, 12, 18, 20, 14, 15, 21, 5, 25, 26 |
Main reference textbooks:
- The main document for the laboratory part is the "Book of practices of the subject Experimentation in Chemistry". Chemistry Department. It contains the necessary information to work in the laboratory and the guides of all the practices. Each practice indicates which concepts of the book should review. It is located in the "Campus Virtual" of the UAB.
- The textbook "R.H. Petrucci, W.S. Harwood and F.S. Herring." QuímicaGeneral "8th ed .. Pearson-Education S.A., Madrid (2003)" will provide the theoretical information necessary for each practice. In the guide of each one are indicated the pages of the book that should be read.
Complementary textbooks:
- A book of laboratory practices that can be found in the library in case one of the experiments is not clear. Manuel Fernández González, Laboratory Operations of Chemistry, Ed. Anaya (2004).
-A textbook that is in the library and that contains explanations about the use of Excel, significant figures and complementary information on block 4 (Chemical Balance). Daniel C. Harris. "Quantitative chemical analysis". Ed. Reverté S.A. Barcelona (2006)
- A book that is in the library and that provides more information about block 3 (Thermodynamics and kinetics) and block 4 (Electrochemistry). R. Chang. General Chemistry, 9th edition, Ed. McGraw-Hill, 2007.
Another resources:
Safety regulations in the teaching laboratories of the Chemistry Department: http://www.uab.cat/doc/DOC_Normativa_Segur_Lab_Docent
Orbital viewer: http://www.orbitals.com/orb/ov.htm
Analysis of properties: EI, AE, density, electrical conductivity: http://www.webelements.com/ and http://www.dayah.com/periodic/
Different resources of visualization of atomic and molecular orbitals: http://www.mpcfaculty.net/ron_rinehart/orbitals.htm