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Questions related from Elnaz Ghahremani
Recently i made 5 dilute solution of methyl orange in water, then measured their surface tension. results showed that surface tension increased by increasing the concentration. dose any body know...
27 July 2022 7,904 7 View
In my work, I want to use Dithizone as a reagent for detecting Zn. I have some question and I`d appreciate it if anybody helps me with these questions: - What happens in the reaction between...
08 December 2021 6,082 11 View
Methyl orange in its structure has a ion of Na+. my question is, after dissolving methyl orange in water, what will happen to that ion? Dose it form NaOH in reaction with water ? consequently,...
11 May 2021 2,173 6 View
I want to use DMG as a reagent for detecting Ni in a solution. in their reaction they form a complex together which color is pink. I attached a picture of the reaction. my problem is I can`t find...
02 January 2021 7,435 3 View
I have a problem in calculating the PH. Imagine that i have a 25% ammonia solution and I want to dilute it by adding water to reach a specific PH ( for example PH=9). do you know how can i...
30 December 2020 6,649 5 View
I try to prepare 100ml of a 1000 ppm Ni(II) solution by solving NiSO4.6H2O in ionized water. To do so I add 0.45g of NiSo4.6H2O to the water. i would appreciate if anyone tell me whether it is...
01 September 2020 8,014 4 View
