Integrated Laboratory I

Chemistry

Laboratory classes where each group conducts an experimental work. Initially the protocol to be followed is introduced and the validity of the
preparatory calculations, performed by the students, is checked. Then the students put into practice, with autonomy, the protocol and perform the
results treatment, under teacher supervision. During the class the students are questioned to assess their class preparation and enhance the
acquired knowledge understanding. At the end of the practical work an oral discussion takes place where the theoretical concepts and results are
discussed. The written reports are further analyzed. The evaluation is continuous and takes into account: i) diagnostic assessment (10%); ii)
Safety Procedures Report (5%); iii) written Reports (40%); iv) Performance evaluation in class (20%) and v) individual practical test with a
minimum score of 9 values (25%). The final classification is obtained by adding the contributions of the various components.

The main objective of the course is to provide the student with the theoretical foundations and practical learning of Laboratory and Analytical
Chemistry, allowing him to put in practice basic concepts taught in theoretical disciplines such as Chemistry.
It is intended that students acquire the following competencies: i) ability to conduct group work; ii) ability to organize and manage the work in
process; iii) ability to describe (orally and in report form) the performed work and to discuss and analyze the experimental results; iv) ability to
correctly use the material and laboratory equipment; v) ability to prepare and standardize solutions used in chemical analysis.

Safety rules in laboratory. Graduated glassware and commonly used equipment handling. Statistical evaluation, presentation, interpretation and validation of analytical results. Preparation of solutions. Acid-base, oxidation-reduction, precipitation and complexation titrations. Potentiometric titration.
Experimental work to be done:
1. Calibration of a pipette
2. Determination of potassium permanganate concentration in a sample by UV / VIS spectroscopy
3. Preparation and standardization of an aqueous solution of HCl and NaOH
4. Preparation and standardization of an aqueous solution of silver nitrate and determination of chlorides in milk
5. Preparation and standardization of an aqueous solution of EDTA and determination of calcium and magnesium in milk
6. Preparation and standardization of an aqueous solution of sodium thiosulfate and determination of dissolved oxygen in water by the Winkler
method
7. Potentiometric titration of an ascorbic acid solution

• - CF=(0.1*A+0.05*B+0.4*C+0.2*D+0.25*E) - 100.0%

NAO

Vidal, M.M., Filipe, O. e Costa, M.C., Química no Laboratório. 2ª edição, 100luz., 2010.

Skoog, D.A, West, D-M., Holler, F.J., Crouch, S.F. Química Analítica, McGraw-Hill, 7ªEd, 2000.

Rouessac, F. and Rouessac, A., Chemical Analysis: Modern Instrumentation Methods and Techniques, John Wiley & Sons, 2000.

Harris, D.C., Exploring Chemistry Analysis, Freeman Ed, 2001.

Kenkel,J., Analytical Chemistry for Technicians, CRC Press, 2003.

Aléxeev, V. Análise Quantitativa, Ed Lopes da Silva, 3ªEd, 1980.

Patnaik, P., Deans’s Analytical Chemistry Handbook, McGraw-Hill, 2004.

Simões, J.M., Lampreia, I., Santos, F., Norberto, M.F., Pamplona, M.T., Meireles, M.M., Guia de Laboratório em Química e Bioquímica, Lidel, 2ª Ed,
2008.