Ahmed Ismail

4 Questions 2 Answers 0 Followers

Questions related from Ahmed Ismail

How can calculate water soluble Cr by uv/vis ?

Dears, I'm using the UV/vis method to determine water-soluble chrome in cement as follows: I take particulate mass from dichromate to make a stock solution then take various volumes of aliquots...

24 April 2024 1,276 1 View

Why do i get violet fine precipitate when i heat egg with conc HCl ?

Hello, When I heat egg albumin or yolk with concentrated Hydrochloric acid I get a violet fine precipitate ..... why does it appear?

14 January 2024 4,122 1 View

Standardization 0.02 N sulfuric acid with tris buffer ?

Dear esteemed colleagues, I have a conflict in the formal calculation of the concentration of sulfuric acid by the primary standard TRIS-buffer, I know from the chemical reaction that 1 mole of...

30 December 2023 1,678 0 View

How can i do calibration function for Beer's law photometer ?

#QuestionForGroup GoodDay, I'm utilizing the Lovibond photometer for water analysis but I noticed in its handbook for analysis that this calibration function is like in the attached photo. is it...

09 November 2023 1,862 4 View