Analytical Chemistry

Code:

Q2020

Acronym:

Q2020

Level:

200

Keywords
Classification	Keyword
OFICIAL	Chemistry

Instance: 2023/2024 - 1S

Active?	Yes
Web Page:	https://moodle.up.pt/course/view.php?id=1857
Responsible unit:	Department of Chemistry and Biochemistry
Course/CS Responsible:	Bachelor in Biochemistry

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
L:BQ	139	Official Study Plan	2	-	6	48	162

Teaching language

Portuguese

Objectives

In theoretical classes, students are expected to acquire basic knowledge of Analytical Chemistry, trying to highlight the importance of analysis in solving real problems. In the theoretical-practical classes are carried out exercises on the subject versed in the theoretical classes. In the practical classes 4 or 5 lab work are carried out.

Learning outcomes and competences

Acquisition of basic notions in Analytical Chemistry and resolution of real-world problems in biochemical systems or with biochemical relevance.

Working method

Presencial

Program

Lectures

INTRODUCTION. Presentation of the working mode of the curricular unit. Introduction to the role of analytical chemistry in society.

CHAPTER 1. Equilibria in solution 1.1. Solutions Overview 1.2. Dissociation of water 1.3. Types of reactions in aqueous solution 1.4. The role of solvent in acid-base reactions 1.5. Base acid reactions 1.6. The basic acid behavior of proteins and amino acids 1.7. Complexation reactions 1.8. Oxidation - reduction reactions.

CHAPTER 2. Volumetric Analysis 2.1. Requirements for the feasibility of the analysis 2.2. Types of volumetrics 2.3. Detection of the equivalence point 2.4. Standards 2.5. Volumetric acid - base 2.6. Oxidation volumetries - reduction 2.7. Volumetry of complexation.

CHAPTER 3. Potentiometry 3.1. Reference electrodes 3.2. Indicator electrodes 3.3. The potentials of the cells 3.4. Interference 3.5. PH measurement 3.6. Other types of membrane electrodes 3.7. Potentiometric measurements 3.8. Direct potentiometric measurements 3.9. Potentiometric titrations.

CHAPTER 4. Methods of separation 4.1. Liquid-liquid extraction as a model of separation processes 4.2. The values of equilibrium in heterogeneous systems 4.3. Effects of lateral reactions. 4.4 The separation of two components from a mixture.4.5 Solid phase extraction. 4.6 Chromatographic methods.

Tutorials
Resolution examples and exercises on topics discussed in lectures.

Practical classes
Carrying out the following lab work and preparation of the respective reports:
T1 - Determination of hydrogen peroxide in commercial hydrogen peroxide by permanganometry; T2 - Potentiometric titration of a mixture of hydrochloric acid and acetic acid with sodium hydroxide; T3 - Potentiometric determination of an anion (nitrate or fluoride) in drinking water; T4 - Spectrophotometric determination of total iron in a natural water; T5 - Recovery of dyes from a mixture using solid phase extraction.

Mandatory literature

Harris Daniel C.; Quantitative chemical analysis. ISBN: 0-7167-2508-8
David Harvey; Analytic Chemistry 2.0, McGraw-Hill, 2000. ISBN: 0–07–237547–7 (http://acad.depauw.edu/harvey_web/eText%20Project/AnalyticalChemistry2.0.html)

Complementary Bibliography

Adélio Machado; Análise Volumétrica, 2ª Edição, Centro de Investigação em Química (U.P.), 1978
João Cabral; Tabelas e Formulário de Química, 1993

Teaching methods and learning activities

The theoretical classes are accompanied by multimedia (the pdf versions are available on the website of the curricular unit). In the theoretical-practical classes are solved a set of exercises designed for application of the subject versed in theoretical classes. Other exercises and copies of exams from previous years are available on the web page to allow students to work individually. In the practical classes laboratory work and the respective reports are carried out.

Evaluation Type

Distributed evaluation with final exam

Assessment Components

designation	Weight (%)
Exame	70,00
Trabalho laboratorial	30,00
Total:	100,00

Amount of time allocated to each course unit

designation	Time (hours)
Estudo autónomo	114,00
Frequência das aulas	48,00
Total:	162,00

Eligibility for exams

≥Attendance of at least 75% of the tutorials and practical classes.

Students with the status of student work are not covered by the fulfillment of the previous condition.

Calculation formula of final grade

In order for the students to be able to pass the course, there is a minimum of 8 marks in the exam (or average of the tests) and 9.5 points in the practical and theoretical-practical component if final mark ≥ 9,5.


Final mark = distributed evaluation (30%) + final exam (70%).

There is the possibility to replace the exam by two written tests. Choosing the test option it is not possible to upgrade the final mark in the Normal exam season.

Students with the status of student work may be assessed by a final written test

Examinations or Special Assignments

Are not provided.

Internship work/project

not applicable

Special assessment (TE, DA, ...)

The special assessment shall be a written examination

Classification improvement

Distributed evaluation can not be improved.
The final mark can be improved only by final exam.