Biological Physical Chemistry Laboratory

Code:

Q2016

Acronym:

Q2016

Level:

200

Keywords
Classification	Keyword
OFICIAL	Chemistry

Instance: 2017/2018 - 2S

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	61	Official Study Plan	2	-	3	42	81

Teaching language

Portuguese

Objectives

Practical application of concepts taught in the discipline Biological Physical Chemistry (previous semester). Application of various physical methods to the study of different reactions. Learning/training in data processing, with recourse to Excel or similar programs. Learning/improving skills in presentation of scientific results and its discussion.

Learning outcomes and competences

Practical execution of the proposed  laborations, with appropriate data treatment and discussion, as part of the corresponding report.

Working method

Presencial

Program

5 Practical laborations:

1. Conductimetric determination of cmc and ionization degree of an anionic surfactant; effect of ionic strength.

2. Influence of ionic strength on the activity of H+. Determination of activity coefficients.

3. Determination of the ionization constant of benzoic acid in water and in water/ethanol solutions by use of pH measurements.

4. Determination of the isoelectric point of glycylglycine, using conductimetric and potentiometric measurements. Determination of ionic conductivities

5. Application of conductimetric methods to the determination of the ionization constant of acetic acid.

6. Determination of activity coefficients in solutions of acetone and choloform.

Mandatory literature

Vários; Trabalhos Práticos

Teaching methods and learning activities

Practical laborations.

keywords

Physical sciences > Chemistry > Physical chemistry

Evaluation Type

Distributed evaluation without final exam

Assessment Components

designation	Weight (%)
Teste	40,00
Trabalho laboratorial	60,00
Total:	100,00

Eligibility for exams

To obtain eligibility the student needs to attend ¾ of the classes, and have a positive evaluation in 2/3 (4 out of 6) of the practical .

Further, the final grade obtained in laboration (NTP) must be ≥ 10, as well as NLAB ≥ 10 and NF ≥ 10 (see bellow)

Calculation formula of final grade

Due to its practical character, the discipline relies only on distributed assessment, and has no exam in either the normal or the recurrent exam period. There will be a grade attributed to each practical laboration, based on home preparation, practical performance and final written report.

An intermediate grade qill be equal to

NLAB = 0.60 NTP + 0.20 NR1 + 0.20 NR2

As aditional evaluation element, each student having NTP≥ 10 will have an individual practical assessment, with a numerical grade (NAP), which can not be < 8 (out of 20). The final grade is calculated as

NF = 0,60 NLAB + 0,40 NAP

In order to pass, the following requirements have thus to be fulfilled: 1. NTP ≥ 10 (out of 20) 2. NAP ≥ 8 (out of 20) 3. NLAB ≥ 10 (out of 20)

Special assessment (TE, DA, ...)

Working students that did not perform the minimum required laborations will have to do the Individual practical assessment. This also applies to students that failed too many classes but have obtained relief of absences, and in these cases NLAB = NAP

Classification improvement

Due to its practical basis, the various components of the evaluation can only be improved by attending the course again in the next year.