Volumetric and Gravimetric analysis

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Volumetric and Gravimetric analysis Analytical Chemistry Volumetric and Gravimetric analysis 250 Chem.

Volumetric and Gravimetric Analysis ………5(3+1+1) King Saud university Chemistry department 250 Chem. Volumetric and Gravimetric Analysis ………5(3+1+1) Instructor : Dr. Amal M. AL-Mohaimeed Office No. : 188Building 5‏ ‏ ‏Phone. : Email : muhemeed@ksu.edu.sa Class time: 10.00-11. Place:5/58‎ Text book:‎. التحليل الحجمي والوزني للدكتور :ابراهيم الزامل Analytical Chemistry by G.D. Christian , Jone Wiley and Sons , New York , last edition . Week Topice 1,2,3 Solutions and concentrations 4,5,6,7,8,9 Chemical Equilibrium: Dissociation constant in acid-base reaction, Solubility product in perception reaction, Formation constant in complexes, equilibrium constant in redox reaction) 10,11,12,13 Volumetric analysis (titrations) (Neutralization, Perception, Complexiometric, redox) 14,15 Gravimetric analysis 16 Review and problems

Schedule of Assessment Tasks for Students During the Semester Date Proportion of final assessment 1 Midterm exam I 8\2\1438 10 2 Midterm exam II 14\3\1438 3 Practical exam I 26/1/1438 15 4 Practical exam II - 5 Quizzes homeworks 6 Final exam 40

Introduction to Analytical Chemistry

What is Analytical Chemistry???? Analytical chemistry is the study of the separation, ‎identification, and quantification of the chemical ‎components of natural and artificial materials Branches of analytical chemistry Qualitative gives an indication of the identity of the chemical species in the sample Quantitative determines the amount of certain components in the substance Qualitative: recognized by color, boiling point, solubility, taste

Classification of Quantitative Methods of Analysis Classical methods Gravimetric Method: mass is measured. Volumetric Method: volume is measured Instrumental Method use an instrumental technique to assay the amount of sample Electro analytical Measurement of electrical property Spectrophotometric Interaction of light and matter

Several different areas of analytical chemistry: Clinical analysis Pharmaceutical Environmental analysis Forensic analysis Industrial quality control Bioanalytical chemistry

Analytical Methodology 1. Understanding and defining the problem 2. Select a method A-sample type B-size of sample C-samples preparation needed D-sensitivity and selectivity E-accuracy and precision needed F-tools/instrument available g-Cost and speed 3- obtain representative sample A-sample type / homogeneity/size 4- preparing the sample for analysis 5-Perform the measurement 6-Calculate the result and report