Experiment 2. Influence of temperature to hydrolysis

A) Fill each of two test tubes with 5-6 drops of 2N CH₃COONa solution and one drop of phenolphthalein solution. Leave one test-tube for comparison and heat another on water bath and note color change. Draw molecular and ionic hydrolysis equations.

B) Fill test-tube with 5-6 drops of FeCl₃ and 4-5 drops of CH₃COONa. Note solution color change as the result Iron (III) Acetate production. Add 10 - 20 mL of distilled water and heat the mixture on water bath up to brown precipitation formation. Draw molecular and ionic equations of hydrolysis (1^st and 2^d steps).

Experiment 3. Hydrolysis strengthening in case of solution dilution

Put 4-5 drops of Bithmus (III) Chloride BiCl₃ and by drops (15-20 drops) distilled water up to basic salt precipitation formation. Save the solution with precipitation for the next experiment. Draw hydrolysis equation taking into account that Bi(OH)₂Cl is produced as the result of hydrolysis.

Experiment 4. Reversibility of hydrolysis process

Add by drops hydrochloric acid solution up to precipitation produced in previous experiment. Than add distilled water up to basic salt precipitation production. Explain the phenomenon, which occurs. Draw molecular and ionic equations.

CHAPTER # 9. OXIDATION-REDUCTION REACTIONS

Sourses:

1. Introduction in General, Organic and Biochemistry, 7^th Edition, by Morris Hein, Leo R. Best, Scott Pattison and Susan Arena, Brooks/Cole Publishing Co., 2001. (Chapter 20, pp. 597-622);

2. http://antoine.frostburg.edu/chem/senese/101/redox/fag/half-reaction/

3. http://www.scince.ubc.ca/~chem/tutorials/pH/section0/index.html

4. http://naio.kcc.hawaii.edu/chemistry/basic_model.html

5. http://naio.kcc.hawaii.edu/chemistry/combination_rxn.html

6. http://www.shodor.org/UNChem/advanced/redox/index.html

7. http://www.chemtutor.com.redox.htm

8. http://antoine.frostburg.edu/chem/senese/101/redox/fag/how-Iron-rust/

9. http://www.netcomuk.co.uk/~rpeters1/auflell.htm

Date: 2015-01-12; view: 884