Chemistry Laboratory II

Code:

EQ0009

Acronym:

LQ II

Instance: 2007/2008 - 2S

Active?	Yes
Responsible unit:	Department of Chemical and Biological Engineering
Course/CS Responsible:	Master in Chemical Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
LEQ	0	Plano de estudos de transição para 2006/07	1	3	3	-
MIEQ	96	Syllabus since 2006/2007	1	-	3	-

Teaching language

English

Objectives

General aims:
Lab sessions aim to provide students with techniques in strict connection with
the theory learned in QUIMICA II.

Specific aims:
Specifically in the first module (Inorganic and Physical Chemistry module), students will apply the (i) equilibrium law and the (ii) Hess law. Additionally, they will consolidate basic procedures of analytical chemistry. In module II (Organic Chemistry), one intends that they can create aptitudes for the execution of simple organic compound synthesis with industrial application.

Program

Module I: Inorganic and Physical Chemistry:

The first session will be a theoretical-pratice for resolution of exercices of concentration calculations. Additionally, preliminary explanation of the following experimental works will be performed:

I. Determination of an equilibrium constant by spectrophotometry ;
II. Enthalpy changes in chemical reactions: Hess’s Law
III. Determination of chlorides by the Mohr method;
IV. Determination of vinegar acidity;

Module II - Organic chemistry
A lesson on synthesis techniques: The reaction, the treatment of the reaction, the purification and identification of the reaction product.
Environmental rules of security. Chemical residues disposal.
Presentation and explanation of the laboratorial works. Relative theoretical concepts to each work. Technical Details

- Accomplishment of 5 laboratorial works:
T1 - Esterification: Preparation of isoamyl acetate (synthesis of a fragrance). Purification by distillation;
T2 - Electrophilic Aromatic Substitution: Preparation of Nitrobenzene.
T3 - Reaction of diazonium salts coupling : Preparation of methyl orange;
T4 - Polymerization: Preparation of a nylon rope 66;
T5 - Aldolic Condensation: preparation of 1,5-diphenyl-1,4-pentadien-3-one. Purification by crystallization.

Mandatory literature

Jeffery, G.H., Bassett, J., Mendham, J., Denney,; VOGEL-Análise Química Quantitativa, 2002
Atkins, Peter; Chemical principles. ISBN: 0-7167-5701-X
Lúcia Santos; Laboratórios de Química II – módulo de Química Orgânica – (documentação de apoio às aulas laboratoriais), 2007
Becker, Heinz G. O. 070; Organikum. ISBN: 972-31-0704-X

Complementary Bibliography

Pavia, Donald L.; Introduction to spectroscopy. ISBN: 0-03-058427-2
Budavari, Susan 340; The Merck index. ISBN: 0911910-12-3

Teaching methods and learning activities

In the lab sessions, students will perform the experimental works, mentioned above, which theoretical explanation has been previously performed. Before the lab session, students should have prepared the lab work and write the necessary notes in their individual lab notebook: theoretical principles involved, experimental procedure and calculations to be done. It is compulsory to bring the lab notebook for all practical sessions.

Concretely in module II - Organic Chemistry there will be asked questions to the pupils, related with the work they are carrying through, requesting that they write some of the related reactional mechanisms.
There will be the correction of the Previous Report, which must be already elaborated by the pupil as home work.

keywords

Physical sciences > Chemistry > Organic chemistry
Physical sciences > Chemistry > Inorganic chemistry

Evaluation Type

Distributed evaluation without final exam

Assessment Components

Description	Type	Time (hours)	Weight (%)	End date
Subject Classes	Participação presencial	42,00
	Total:	-	0,00

Eligibility for exams

The lab works are compulsory for all the students.
The frequency to the discipline will be achieved by the students who have not exceeded the legal limit of absences and have a Lab grade equal or higher than 9.5 values.

Calculation formula of final grade

Final classification (FC) is calculated taken into account the following equation: FC=0,5 Inorganic Module+0,5 Organic Module.
For each module, the evaluation has two parts: Laboratory (Lab) (50%) and Theoretical (T) (50%) ones.
The final grade of the Lab part includes the following components: (i) Continuous Evaluation (30%) and a Final Report of one of the lab works (20%).
Continuous Evaluation comprises assiduity, previous preparation of the lab session in the notebook or preparation of the previous report, experimental performance, calculations and discussion of the results. One week after the students have performed the lab work, data and results should be compiled in the notebook. For each module, students should have a minimal grade of 6 values (scale out of 20).

For the Theoretical part, students will perform a written test at the end of each module. The minimal grade of each written test is 6 values (scale out of 20).

In the present academic year, repeating students with frequency attaining will perform a global test of all contents taught last year (2005/06). This test will be on 16 of April at 5h p.m. The final classification will be calculated as follow: CF= 0,4 Frequency Classification of the last Academic Year + 0,6 Global Test. The minimal grade of the Global Test is 6 values (scale out of 20.

Classification improvement

Students can only improve their theoretical grade in the last exam.

Observations

The date for the theoretical tests and the deadline for delivering the final reports are:

Module I: 16 of April at 5h p.m.;

Module II: 28 of May 5h p.m.