Chemistry I

Scholar Year: 2018/2019 - 1S

Courses

Head Teacher Responsability Carla Alexandra Gamelas Albuquerque Pinto Reis Head

Weekly workload Hours/week T TP P PL L TC THE EL OT OT/PL TPL S Type of classes 0 0 Lectures Type Teacher Classes Hours Theorethical and Practical classes Totals 1 0,00 Laboratories Totals 1 0,00

Teaching language

Portuguese

Intended learning outcomes (Knowledges, skills and competencies to be developed by the students)

To give the student a broad overview of the fundamentals of chemistry, in its basic scientific training. These fundamentals are essential to understand the analytical methods applied to the Environment. Understanding the relevance of chemistry in natural systems, namely in marine and the river systems, as well as in treatment systems.

Syllabus

1. Atomic structure and periodicity.
2. Chemical bond and interactions between molecules. Lewis formulas and resonance
contributors. Molecular geometries. Dipole moment and the polarity of the molecule.
3. Gases.
4. Solutions and concentration of Solutions.
5. Chemical reactions and stoichiometric calculations.
6. Chemical equilibrium.
7. Chemical Thermodynamics.
8. Acid-base equilibrium. Acids and bases definition. pH scale. Buffers. Titrations.
9. Solubility equilibrium. Determination of solubility of a salt.
10. Oxidation-reduction reactions and electrochemistry.
11. Risk and safety rules when working with chemicals.

Experimental works:
- Evaluation of the graduate glassware errors.
- Preparation of Solutions.
- Determination of the yield of a precipitation reaction.
- Chemical Equilibrium: Le Châtelier's principle.
- Acid-base titrations.
- Determination of the solubility product of a salt and common ion effect.

Demonstration of the syllabus coherence with the UC intended learning outcomes

The CU addresses concepts from the Chemical Bond to the various forms of Chemical Equilibrium, thus covering the fundamentals needed to the understanding of the Environmental Chemistry (environmental analysis, chemistry in natural systems, namely in marine and river systems, as well as treatment systems).
Therefore, the curricular unit begins by addressing fundamental issues of chemical bonding (Chapter 1), solutions and concentrations of solutions (Chapter 2) and stoichiometric calculations (Chapter 3). These concepts are essential for understanding the chemical equilibrium contents, with particular emphasis on the acid-base equilibrium, solubility and oxidation-reduction (Chapter 4, 5 and 6). These concepts are essential for learning chemical equilibrium content, with particular emphasis on the acid-base equilibrium, solubility and oxidation-reduction (Chapter 4, 5 and 6).

Teaching methodologies

Interactive training even in the introduction of theoretical concepts. Students are guided to draw their own conclusions.
In laboratory sessions, groups of 3-4 students carry out experimental work, according to provided protocols, and then developing the respective questionnaire or report.

Demonstration of the teaching methodologies coherence with the curricular unit's intended learning outcomes

In this curricular unit the teaching methodologies are varied in order to guarantee that students not only acquire theoretical knowledge, but are able to apply this knowledge in the of this course, Environmental Engineering.
For this purpose more practical teaching methodologies are used, such as solving and interpretation of problems, but also experimental methodologies are used. For this reason the CU has a strong laboratory component, which is intended to illustrate the transmitted theoretical concepts with experimental examples, and develop in students
-the ability to experiment and apply the scientific method;
-the technical skills and 'know-how' associated to the chemistry laboratory;
-team work
This Experimental component is fundamental for the purpose of this CU, which is reflected in the CU
evaluation by a 50% weight on the final evaluation.

Assessment methodologies and evidences

It is mandatory to carry out all experimental work. Continuous Evaluation consists of two components (50% each). The evaluation components are the follows:
a) Laboratory evaluation: based on laboratory performance (25%), report / questionnaires (50%), discussion of the work (25%).
b) Tests evaluation: consists of two tests (50% each).
Exam Evaluation: a final exam that will be with 50% weigh. The other 50% ponderation will be obtained
considering the laboratory evaluation.

Bibliography

(1) J. Glanville;‘General Chemistry for Engineers’, 2nd ed, Prentice Hall, 2003
(2) T. Fu Yen;‘Environmental Chemistry – Chemical principles for environmental processes’, Prentice Hall, 1999
(3) C. E. Housecroft, E. C. Constable;Chemistry - An integrated Approach, Addison Wesley, 1997
(4) R. Chang;Chemistry, 11th Edition, 2012. ISBN: 0071317872