S.A Tantawy

3 Questions 1 Answers 0 Followers

Questions related from S.A Tantawy

Can k2 in pseudo second order be negative?

after plot t/qt vs t and calculate intercept , slope i found k2 negative value is that possible ?

02 July 2017 2,972 2 View

I get negative value of absorbance of dye solution what can i do?

i add substance with ph = 11 to study the effect of ph on adsorption of dye on surface but i get negative value of absorbance using uv spectrophotometer after shaking 1 hour

16 May 2017 3,305 3 View

How can measure amount of acid and base site of surface?

i work in a composite with zno

12 May 2017 9,779 1 View