ahmedabudief

Dr. Ahmed Mohammed Abu-Dief Mohammed

Assistant Professor - Assistant professor of Inorganic and Physical Chemistry

Faculty of science

Address: Behind hospital of Sohag University - Ali Ebn Abi Taleb Street

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2019-11-14 23:16:14 | 8 | Physical Chemistry 3
Calculate
Radiation of wavelength 290 nm passed through 1.0 mm of a solution that contained an aqueous solution of the amino acid tryptophan at a concentration of 0.70 mmol dm-3. The light intensity is reduced to 60% of its initial value. Calculate the absorbance and the molar absorption coefficient of tryptophan at 280 nm. What would be the transmittance through a ... Read more

IR

2019-11-14 22:44:11 | 35 | Physical Chemistry 3
IR
Which of is the following compounds are IR active? CHCl3- O2-Cl2- CCl4- C6H6 Read more

2019-11-14 22:24:15 | 29 | Physical Chemistry 3
Emission and Absorption
Defferentiate betwen Emission and Absorption spectoscopy? Read more

2019-11-11 23:07:09 | 8 | Physical Chemistry 2
chain-branching explosion
A CHAIN-BRANCHING EXPLOSION occurs when the number of chain centres grows Linearly () Read more

2019-11-11 23:03:39 | 9 | Physical Chemistry 2
Following the reaction
True or false We can follow the reaction between of water and sodium kinetically ( ) Read more

2019-11-05 22:47:16 | 8 | Physical Chemistry 2
Drive
Drive the equations for calculation of rate constant of the reaction between Br2 and H2? Read more

2019-11-05 22:21:57 | 8 | Physical Chemistry 2
True or false
Put true or false 1-The intermediates in a chain reaction are called chain carriers ( ) 2- IN NUCLEAR FISSION THE CHAIN CARRIERS ARE ELECTRONS ( ) Read more

2019-11-04 00:44:34 | 40 | Physical Chemistry 3
The energies of ns orbitals
True or False The energies of ns orbitals increase (become less negative; the electron becomes less tightly bound) as n increases ( ) Read more

2019-11-04 00:08:31 | 26 | Physical Chemistry 3
Schrodinger equation 2
The Schrodinger equation for the internal motion of the electron relative to the nucleus is ...................... Read more

2019-11-02 14:33:16 | 23 | Physical Chemistry 3
Hamiltonian
Write the equation which give the Hamiltonian for the electron and a nucleus of mass mN . Read more