Category Archives: Chemistry Practical

PRINCIPLE OF UV- VISIBLE SPECTROSCOPY

The Ultraviolet (uv) region extends from about 10 to 380 nm, but the most analytical useful region is from 200 – 380nm, called the near ultraviolet region. Below 200 nm, the air absorbs appreciably and so the instruments are operated

LOW TEMPERATURE STERILIZATION

LOW TEMPERATURE STERILIZATION Biological fluid also sterilized by heating it with water bath at a temperature of 56ºC for period of one hour. This process required continuous sterilization in a daily interval depending on the important of the material. On

Practical guide of Vinegar Analysis

Vinegar Analysis A low percentage acid solution are seen in many commercial product. Vinegar are solution of water with 4 to 5 % acetic acid CH3COOH by weight. Often many product we buy in the market has one or two

Laboratory Practical Oxidation of Ethanol to Ethanal Using CuO

Oxidation of Ethanol to Ethanal Using CuO This practical is all about to teach you how to prepare aldehyde from ethanol. Material that is required for the practical are; 10ml of Ethanol C2H5OH Copper wire Equipment are; Safety Google Test

Production of Acetone from 2-propanol

Production of Acetone from 2-propanol We have deal with theory involving acetone on the following link Aldehydes and ketone hear we going to show you practical step involve in the production of acetone from 2-propanol. Materials 20ml 70% propanol (isopropyl) 100

Statistical Application in Analytical Chemistry

Statistical Application in Analytical Chemistry When chemistry begin, many great chemist find it challenging in various ways, which the idea the concept to analyze a large number of sample in such many monitoring devotion to make sure that representative coverage,

Aldehydes and ketone

Preparation of Aldehydes and ketone Introduction Aldehyde and ketone is an organic compound that both have C=O or carbonyl group. The different between aldehyde and ketone is that, aldehyde have alkyl (R) group and one hydrogen (H) atom attached to

laboratory preparation of ester

Preparations of Ester Introduction Ester is produce when organic acid R-COOH is heated with alcohol, R-OH, in the present of strong acid. Below is a general reaction for esterification of an organic acid with alcohol; R-COOH + HO-R  ⇔ R-CO-OR +

practical guide of Laboratory weighing and balance

BALANCE AND WEIGHING Many chemistry experiment involve in different stages. Much time are usually consume during weighing procedures, the main key aspect of time consumer during weighing procedure is weighing to degree of accuracy base on the excessive experimental requirement.

SIMPLE STEP FOR SETTINGS UP PRACTICAL SIMPLE DISTILLATION COLUMN

When setting simple distillation column as shown in the picture above, bellow are the apparatus required; 1. Thermometer 2. Connecting adopter 3. Condenser  4. Clamp and stand 5. 2 round bottom flask 6. Magnetic stir Bar 7. Heating source  The

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