CH-303 : Chemistry Practical

A. Chemical Kinetics: Integrated rate method: (Any Three)

Experiment No. 1 
To Study the Acid catalysed hydrolysis of an ester (methyl Acetate) and determine the rate constant (k). (first order reaction).
Experiment No. 2 
To compare the relative strength of HCl and H2SO4 or HNO3 by studying the kinetics of hydrolysis of methyl acetate
Experiment No. 3 
To study the kinetics of saponification reaction between sodium hydroxide and ethyl acetate.
Experiment No. 4 
To determine energy of activation of the reaction between K2S2O8 and KI.
Experiment No. 5 
To determine the order of the reaction with respect to K2S2O8 by fractional life method following the kinetics of per sulphate iodide reaction.

B. Inorganic quantitative / qualitative analysis (Any two)

Experiment No. 1 
Estimation of Fe(III) from given solution by converting it to Fe(II) using Zn metal and then by titrating with standard solution of K2Cr2O7-A Green Approach.
Experiment No. 2 
Determination of BaCO3 content in a given sample by precise determination of volume of CO2 .
Experiment No. 3 
Separation and Identification of metal ions by Paper Chromatography .

C. Organic Qualitative Analysis (Two mixtures: solid-solid type)

Experiment No. 1 
Separation of Two Components from given binary mixture of organic compounds containing mono-functional group (Ex. – carboxylic acid, phenols, amines, amide, nitro, etc.) and systematic identification of each component qualitatively.

D. Organic Preparations (Any two)

Experiment No. 1 
Preparation of benzoic acid from ethyl benzoate (Identification and confirmatory Test of –COOH group, M.P and purity by TLC) .
Experiment No. 2 
Acetylation of primary amine (Green approach) .
Experiment No. 3 
Base catalyzed Aldol condensation (Green approach)
Practical No. 4 
Preparation of Quinone from hydroquinone (Confirm the conversion by absence of phenolic –OH group in product, M.P and purity by TLC)

E. pH Metry (Compulsory)

Experiment No. 1 
To determine equivalence point of neutralization of acetic acid by pH-metric titration with NaOH and to find best indicator for the titration.

F. Volumetric Analysis (Any two)

Experiment No. 1 
Estimation of Aspirin from a given tablet and find errors in quantitative analysis. (Standardization of acid must be performed with standard Na2CO3 solution, prepared from dried anhydrous AR grade Na2CO3)
Experiment No. 2 
Determination of acetic acid in commercial vinegar by titrating with standard NaOH. Express your results as average ± standard deviation. (Standardization of base must be performed with standard KHP).
Experiment No. 1 
Determination of Hardness of water from given sample by complexometric titration (Using E.D.T.A.) method and total dissolve solids by conductometry. Express your results as average ± standard deviation. (Standardization of Na2EDTA must be performed with standard Zn(II) solution)
G. Mini Scale Project ( Choice Based Activity )
H. Students Short Activities (for both semesters)