Mouhiaddine mohamed El Jamal

6 Questions 20 Answers 0 Followers

Questions related from Mouhiaddine mohamed El Jamal

Doping TiO2 by metal ion such as Cu (II) during sol gel preparation, where the metal ion take place at the surface of TiO2 or inside the TiO2 latice ?

The metal ion will deposit on the surface of TiO2 particles or will occupy the free places inside the lattice ? or the two proposed cases are possible during the sol gel prepration of TiO2?

14 August 2020 8,652 8 View

Can we differenciate between anatase and rutile phase by FTIR?

We can differenciate between these two phases by XR and Raman spectroscopies. But apprently they have similar ir spectra, Is it true

11 February 2020 3,712 4 View

How to determine the order with respect to ester in the hydrolysis of ester in basic medium?

Hi, I would like to know the pseudo order with respect to ester in the hydrolysis of ester in basic medium. I did three experiments with different concentration of ester (0.1;0.15 and 0.2 M) ,...

19 January 2017 7,885 7 View

How Fe(II) increases the rate constant of a reaction, but it increases the apparent activation energy?

Fe(II) increases the rate constant between K2S2O8 and the food colorant (E131). Theoretically, the activation energy in presence of Fe(II) would be less than in its absence ( if Fe(ll) is a...

25 April 2016 5,968 14 View

Why does the absorbance of rose bengal increase in the first step of its reaction with the oxidant Cl2?

The dye rose bengal (RB) or Eosine Y react with Cl2 produced by electrolysis at Pt. electrode (in presence of KCl). To determine the order of the reaction the absorbance of the dye is plotted vs...

19 June 2013 3,844 0 View

How CO2 radical reacts with Cr (6)

Hi how do u explain that CO2 radical which is an oxidant reacts with another ocidant Cr(6). U have an ox red reaction so I have a problem to understand this reaction mentioned in yr article about...

01 January 1970 4,902 10 View