Guia docente 2017_18
Facultade de Química
Grao en Química
 Subjects
  Analytical chemistry I
   Contents
Topic Sub-topic
Subject 1: Analytical Chemistry and analytical process. The Analytical Chemistry as a metrological science. Classification of the analytical methods. The analytical process: steps. Types of analytical problems and working scales. Conceptual and technical hierarchy.

Subject 2: Evaluation of the analytical results. Analytical properties. Errors in Analytical Chemistry: classification. Basic statistics applied to the expression of the results. Comparison and rejection of the results. Concept of traceability.
Subject 3: Introduction to the qualitative and quantitative Chemical Analysis . Previous operations to the analysis. Sampling and sample treatment. Decomposition and dissolution. Introduction to the analytical separations. Qualitative analysis: characteristics of the binary answers. Classical quantitative analysis and instrumental. Methodologies of quantification. Calculable and relative methods.
Subject 4: Quantitative analysis: volumetric and gravimetric. Volumetric reactions. Pattern solutions. Direct, indirect and back titrations. Formation, properties and purity of the precipitates. Calculations in volumetric and gravimetric analysis .
Subject 5: Acid-base titrations Behaviour of monoprotic, polyprotic and amphoteric species. Titration curves. Detection of the end point: acid-base indicators. Titrant reagents. Analytical applications.
Subject 6: Complexometric titrations Stability of the complexes. Masking reactions. Titration curves . Detection of the end point: metallochromic indicators. Analytical applications.
Subject 7: Precipitation titrations. Factors affecting the solubility of precipitates. Titration curves. Detection of the end point: Mohr, Volhard and Fajans methods. Analytical applications.
Subject 8: Redox titrations Factors influencing the redox potential. Titration curves. Detection of the end point: redox and specific indicators. Analytical applications.
Qualitative analysis (Laboratory) Separation and identification of chemical species. (3 sessions)

Resolution of an analytical problem by using a systematic separation procedure. (2 sessions)
Gravimetric analysis (Laboratory) Gravimetric determination of nickel with dimethylglyoxime. (1 session)
Acid-base titrations (Laboratory) Determination of the acidity of a vinegar sample. (1 session)

Determination of acetylsalicycil acid in analgesics. (1 session)
Complexation titrations (Laboratory)
Determination of the hardness of a water sample. (1 session)
Precipitation titrations (Laboratory) Determination of chloride in seawater using the Mohr method. (1 session)
Redox titrations (Laboratory) Determination of wealth in oxygen in a hydrogen peroxide sample. (1 session)

Determination of active chlorine in a bleach sample . (1 session)
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