lobna.nassr

Lobna Abdel-Mohsen Ebaid Nassr

Professor - Head Of Chemistry Department- Director of Quality Management Unit - Faculty of Science - Sohag University

Faculty of science

Address: Chemistry Department - Faculty of Science - Sohag University

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Effect of Ionic Strength

2018-11-29 20:53:53 Chemical kinetics 321 C
The increase in _I, _INCREASES the rate constant for reactions between ions of the SAME CHARGE and decreasesit when the ions are oppositely charged. For reactions in which one of the species is NEUTRAL, ... Read more

Fe Extraction

2018-11-29 16:14:13 Transition Elements 311 C
The main steps of Extraction of Iron in a Blast Furnace: *THE BLAST FURNACE IS CHARGED FROM THE TOP WITH IRON ORE, COKE (REDUCING AGENT) AND CACO3 (SLAG FORMING SUBSTANCE). *AIR IS BLOWN IN ... Read more

Application of Ag and Au

2018-11-29 16:03:55 Transition Elements 311 C
Applicatins of silve and its compounds: The principal use of silver is as a precious metal. Applications of Gold and its compounds Gold and its many alloys are most often used in jewelry, coins. ... Read more

Charge Transfer

2018-11-29 15:56:01 Transition Elements 311 C
LMCT complexes arise from transfer of electrons from MO with ligand-like character to those with metal-like character. Metal-to-ligand charge-transfer (MLCT) complexes arise from transfer of electrons from MO with metal-like character to those with ... Read more

Sustainable Development

2018-11-29 15:51:46 Transition Elements 311 C
SUSTAINABLE DEVELOPMENT is the organizing principle for meeting human development goals while at the same time sustaining the ability of natural systems to provide the natural resources and ecosystem services upon which the economy ... Read more

Effusion and Diffusion of Gases

2018-11-14 22:58:06 Kinetic Theory 321 C
EFFUSION: the process by which a gas escapes through a tiny hole in its container into an evacuated space. THOMAS GRAHAM studied the _EFFUSION__RATE_ of a gas, “the number of molecules escaping per unit ... Read more

Applications of the Gas Laws

2018-10-17 21:15:54 Kinetic Theory 321 C
APPLICATIONS OF THE GAS LAWS REACTION IN CAR ENGINE In a car engine, a reaction occurs in which fewer moles of gasoline and O2 form more moles of CO2 and H2O vapor, and heat ... Read more

Applications of transition elements

2018-09-22 21:46:57 Transition Elements 311 C
Some important applications of the compounds derived from transition elements: Some coloured inorganic compounds - derived from transition elements - are used as pigments in dyes. Some examples of the used compounds: Titanium dioxide ... Read more

Forms of Energy

2018-09-01 11:55:28 Physical Chemistry 251 C
KINETIC ENERGY is a form of energy that results from an object's motion. There are many types of motion that use kinetic energy: translation (moving from one place to another), rotation, and vibration. The ... Read more

C Dating

2018-08-31 21:21:47 Kintic of the reactions 628 C
CRABON DATING AS AN APPLICATION FOR THE KINETICS OF THE REACTIONS RADIOCARBON DATING (also referred to as CARBON DATING or CARBON-14 DATING) is a method for determining the age of an object containing organic ... Read more