Judith U. Okoduwa

7 Questions 3 Answers 0 Followers

Questions related from Judith U. Okoduwa

How do I get a good model for my work using design of experiment?

I am considering 4 factors in my experiments. Stirring speed, temperature, time, and solvent mass fraction in my research. I have run the entire 30 runs and even repeated the ones that are...

28 December 2024 7,912 2 View

What does a negative extraction efficiency mean?

I am working on extracting BTX from simulated water using deep eutectic solvents.Using DOE, factors of interest such as time, solvent mass fraction, temperature and speed were varied. On carrying...

04 September 2024 2,608 2 View

What reagent can be used to stabilize a mixture of benzene, toluene, ethylbenzene and xylene?

I am plotting a calibration curve of benzene, toluene, ethylbenzene, and xylene (BTEX) in water. I have been struggling to get a good straight-line calibration curve because of the volatile nature...

13 May 2024 7,477 0 View

How do you determine selenium, arsenic and mercury by spectrophotometry?

Is using a Cold vapour generation accesory coupled to an AAS same as using a Hydride vapour generation technique to determine As, Se and Hg?

20 November 2022 5,871 5 View

How do I prepare 100g of TBAB: Decanoic acid in molar ratio 2:1, 1:1? Molar mass of TBAB= 322.37g/mol and Decanoic acid=172.26g/mol?

no of moles =mass/molar mass

03 November 2021 1,953 0 View

How do you measure the density, surface tension, freezing point, viscosity, refractive index of deep eutectic solvents?

A deep eutectic solvent is prepared by mixing a quaternary ammonium salt with metal salts or a hydrogen Bond donor such as urea to form a liquid with a melting point lower than the melting points...

17 March 2020 2,542 5 View

Why do sorbent materials from fibres form oil balls after sorbing oil?

Modified fibres were introduced into a crude oil spill and after sorbing the oil, clumps/balls were formed

01 January 1970 1,312 0 View