Chemistry Laboratory

Code:

Q121

Acronym:

Q121

Keywords
Classification	Keyword
OFICIAL	Chemistry

Instance: 2014/2015 - 1S

Active?	Yes
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	119	Plano de Estudos a partir de 2007	1	-	7,5	-

Teaching language

Portuguese

Objectives

The Chemistry Lab (Q121) course comprises a set of practical works, involving several experimental techniques and procedures with the aim of providing the students with a basic training in chemistry laboratory techniques. It also provides basic training in information and communication technologies: search of scientific information on the Internet and computation of some chemical problems.

Learning outcomes and competences

It is intended that at the end of the semester the student has acquired the following basic skills:
i) to be able to perform correctly and accurately a set of basic unit operations in laboratory chemistry;
ii) to be able to plan, execute and interpret critically experiments in chemistry related to the practical problem-solving;
iii) to know how to correctly prepare reports of experimental activities;
iv) to know how to use basic computer tools for problem-solving in experimental chemistry.

 

Working method

Presencial

Program

A1 – Lab classes (3 h/week)

1. Introduction to the course. Safety rules in the lab.

2. Introduction to basic chemistry lab operations.

3. Pratical laborations:
PL1 – Preparation of solutions (2 classes).
PL2 – Acid-base titration.
PL3 – Purification by recrystalization.
PL4 – Determination of the stoichiometry of a reaction.
PL5 – Destilation of a water-acetone mixture.
PL6 – Spectrophotometric determination of a food dye.

4. Discussion

5. Individual practical assessment


A2 – Information and communication technologies (ICT) (1 h / week)

1. Searching for scientific information on the internet (Brookhaven Protein Data Bank-PDB; NIST Chemistry Web Book) ;scientific bibliography (ISI Web of Science).
2. Handling worksheets
2.1. Statistical analysis of experimental results
2.2. Handling data and basic calculations
2.3. Data plotting 
2.4. Data fitting - minimum squares method
2.5. Use of Solver.
3. Free (or available at UP) software for visualization of structures and models



A3 – Introductory/problem-solving classes (1 h / week)

1. Safety rules - short film viewing and discussion.
2. Errors and significant digits
2.1. Handling significant digits
2.2. Precision, accuracy and types of errors
2.3. Error propagation
2.4 Presenting final results
3. Calculations on solution concentrations
4. Acid-base titrations
5. Purification methods
5. Stoichiometric calculations on gases
6. Phase equilibria
6.1. Phase diagrams of binary mixtures
6.2. Simple and fractional distillation
7. Absorption of light and the Beer-Lambert Law


Bibliography

Laboratório de Química (Q121) − Trabalhos Práticos, Departamento de Química e Bioquímica - Faculdade de Ciências, Porto, 2010.

Guia do Laboratório de Química e Bioquímica, José A. Martinho Simões, Miguel A. R. Botas Castanho, Isabel M. S. Lampreia, Fernando J. V. Santos, Carlos A. Nieto de Castro, M. De Fátima Norberto, M. Teresa Pamplona, Lurdes Mira e M. Margarida Meireles, Lidel, Lisboa, 2000.

Breves Notas sobre Segurança em Laboratórios de Química, Ana Paula S. M. C. Carvalho, Maria das Dores M. C. Ribeiro da Silva e Manuel A. V. Ribeiro da Silva, Departamento de Química - Faculdade de Ciências, Porto, 1999.

Técnicas Laboratoriais, Manuel A. V. Ribeiro da Silva, Departamento de Química - Faculdade de Ciências, Porto, 1977.

Técnicas Laboratoriais − Trabalhos Práticos, Manuel A. V. Ribeiro da Silva e Maria das Dores M. C. Ribeiro da Silva, Departamento de Química - Faculdade de Ciências, Porto, 1977.

Notas sobre erros e tratamento de dados em Química, Eduardo Figueira Marques, Departamento de Química - Faculdade de Ciências, Porto, 2004.

Fundamental do Excel 2007, Maria José Sousa, FCA, Lisboa, 2007.

Mandatory literature

Laboratório de Química (Q121) ; Trabalhos Práticos, Departamento de Química e Bioquímica, Faculdade de Ciências, Porto, 2013
Eduardo Figueira Marques; Notas sobre Erros e Tratamento de Dados em Química, Departamento de Química e Bioquímica – Faculdade de Ciências, Porto, 2013

Complementary Bibliography

Pombeiro Armando J. Latourrette O.; Técnicas e operações unitárias em química laboratorial. ISBN: 972-31-0366-4
Simões José A. Martinho 070; Guia do laboratório de química e bioquímica. ISBN: 972-757-146-8
Manuel A. V. Ribeiro da Silva; Técnicas Laboratoriais, Departamento de Química – Faculdade de Ciências, Porto, 1977
Maria José Sousa; Fundamental do Excel 2007, FCA, Lisboa, 2008
Manuel A. V. Ribeiro da Silva e Maria das Dores M. C. Ribeiro da Silva; Técnicas Laboratoriais – Trabalhos Práticos, Departamento de Química – Faculdade de Ciências, Porto, 1977
Ana Paula S. M. C. Carvalho, Maria das Dores M. C. Ribeiro da Silva e Manuel A. V. Ribeiro da Silva; Breves Notas sobre Segurança em Laboratórios de Química, Departamento de Química – Faculdade de Ciências, Porto, 1999

Teaching methods and learning activities

Experimental lab classes, problem-solving classes and computational lab classes.

Software

bibliogafia

keywords

Physical sciences > Chemistry
Physical sciences > Chemistry > Instrumental techniques

Evaluation Type

Distributed evaluation without final exam

Assessment Components

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

Eligibility for exams

Continuous assessment without final exam. Maximum allowed number of absences: 1/4 of the total number of classes; 1/3 of pratical laborations.

Calculation formula of final grade

Practical lab mark:
NLAB = 0,50 x NTP + 0,50 x NAP
where NTP is the average grade of all 6 practical laborations and NAP is the individual lab assessment mark

The final grade, NF, is calculated according to:
NF = 0,75 x NLAB + 0,25 x NTIC
where NTIC is the grade on the ICT part.

Approval requires NTP ≥ 10, NAP ≥ 8 and NTIC ≥ 8.