Analytical Chemistry

Recommended Prerequisites

The recommended prerequisites include what is taught in the Secondary Schools in the curricular unit of Chemistry, namely at the 12.º level. Also the 1^st semester General and Inorganic Chemistry curricular unit is an important issue for an adequate knowledge in Analytical Chemistry.

Teaching Methods

The lectures are intended to explain theoretical concepts, conveniently illustrated with relevant application examples. The lectures are taught in an informal way, applying for active student participation. The practical classes are based in problem based learning. In laboratory classes, students perform analytical determinations based on methods described in the lectures.   

Learning Outcomes

At the end of the semester, the student should be able to balance chemical equations, according to the different chemicalequilibrium involving chemical species in aqueous solutions. Students should also be able to apply knowledge and develop volumetric and gravimetric analytical methodologies.

Work Placement(s)

No

Syllabus

Introduction
Basic equipment. Terminology. Numeric values, quantities, units. Chemical concentration. Preparation of solutions.
Characterization and measurement results. Experimental error. Statistical tests. Frequent errors in the analysis. Standards.
Sampling. Separation between analyte and interfering components.
Chemical Equilibrium. Constant of Equilibrium. Homogeneous and heterogeneous systems. Multiple equilibria. Factors affecting the chemical equilibrium.
Acid-base in aqueous solution. pH. Buffers. General acid-base equilibrium. Volumetric acid-base titrations.
Complexometry. EDTA. Titration curves. Examples
Oxidation-reduction. Electrochemical cells and potential electrodes. Redox volumetric titrations.
Solubility and solubility product. Precipitation. Selective precipitation. Precipitation volumetric titrations. Gravimetric concepts and applications.
Introduction to chromatography. Retention, selectivity and resolution. The general problem of elution.

Head Lecturer(s)

Fernando Jorge dos Ramos

Assessment Methods

Assessment
Mini Tests: 10.0%
Laboratory work or Field work: 20.0%
Exam: 70.0%

Bibliography

Harris D.C. Quantitative Chemical Analysis. 8th Ed., W. H. Freeman, New York. 2010.

Chang, R. Quimica,  McGraw, Lisboa, 8ª ed, 2005

Christian G.D. Analytical Chemistry, 6th Ed., Wiley, New York. 2003.

Mendham J., Denney R.C. , Barnes J.D. & Thomas M.J.K., Vogel's Quantitative Chemical Analysis, 6th Ed., Longman, London, 2000

Skoog, D., West, D., Holler, F., Crouch, Fundamentals of Analytical Chemistry, 8th Ed., Saunders College Publishing, 2003.