How to standardize 0.025 N solution of sodium thiousulphate with potassium dichromate in BOD analysis
https://labmonk.com/preparation-and-standardization-of-sodium-thiosulphate
See the attached document
To standardise 0.025 N sodium thiosulfate:
Take 100 mL distilled water in conical flask
Add 2g of Potassium di-iodide
Add 10 mL of potassium di chromate
And lastly add 2 mL of Sulfuric acid
Now titrate this with sodium thiosulfate
Reading in burette should be 10 to confirm .025 N of thiosulfate.
Hello, I am a master's student studying in Yonsei Univeristy, Korea. I am trying to estimate the state of satellite, using Neural Network. Below is a simple flow of my study. 1. Train (t0 ~ t1)...
23 February 2021 6,383 3 View
02 January 2021 980 5 View
I am looking for a way to analyze the results in the cloudsim simulator.
02 January 2021 1,192 2 View
The data of my research consists of 5 independent variables and 1 dependent variable. After running multiple linear regression in SPSS it is found that the beta coefficients of 2 independent...
16 September 2020 1,325 3 View
My question is: Is there any mathematical or empirical way to prove that given a dataset containing noisy signals y(t) [Y = X +N] and another dataset containing noise N and we want generator to...
06 August 2020 9,574 3 View
Hello all, I would like to ask if anyone have Ferrell Quality of Life - Breast Cancer version tool translated into Arabic Language please?
26 July 2020 8,967 1 View
There is increasing evidence of GI tract epithelial cells serving as replication medium for COVID-19. Data from GI suites in Europe have shed light on this issue where the virus can be spread...
11 May 2020 9,907 20 View
Does anyone know from where can i have the online version of odd one out task as a measure of non-verbal working memory for kids (4-7)yrs to assist my research?.. Thank you
18 June 2019 5,913 1 View
I am working on a project of capital structure and ICOs. There are different websites that can be approached as coinmarketcap.com, tokenmarket.net and some others. but I didn't find the data of...
12 June 2019 3,354 3 View
Hi, I want to use potassium channel (BKca) opener as a standard for in vivo evaluation of my compound in rats for anti-hypertensive activity.
26 March 2019 7,543 2 View
Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...
01 March 2021 2,622 3 View
Hello, I am trying to make anode for Na-ion batteries. I have no experience with preparation of the electrolyte for any batteries. NaClO4 salt are available and I am planning to use EC:PC as...
21 February 2021 8,132 1 View
12 February 2021 2,958 1 View
I need to determine the open formula of our complex, presumably consisting of sodium tungstate Na2WO4 and aluminum sulfate Al2 (SO4) 3. Our problem is that with an increase in the concentration...
11 February 2021 5,821 1 View
I am doing a salt tolerance-related experiment and for that I need to relate my salt levels to that in bacto agar. I don't want my salt concentrations to increase due to already salt content...
09 February 2021 4,158 1 View
When I tried to mix a sodium metabisulfite solution with sodium hydroxide solution, the mixture solution quickly became turbid. Before mixing both were clear solutions. Please help explain the...
03 February 2021 8,075 2 View
Engine oil extraction from contaminated soil,10kg of contaminated soil+20ml of dicholoromethane+? of anhydrous sulphate
01 February 2021 9,509 1 View
I work with insect primary cells, which I let grow in TC100 insect medium. For fluorescence measurements I have to discard medium (because of its fluorescence properties) and give a saline...
28 January 2021 3,867 1 View
Hi everyone! I am purifying a peptide from a mixture of proteins. The peptide (3 kDA) is in a solution containing a high concentration of urea and imidazole. I would like to be able to change the...
27 January 2021 4,055 4 View
I wanted to perform rhodanese enzyme assay using salt potassium ferricyanide (K3Fe(CN)6). The assay is based on the products formed in the reaction but I can't get the reaction i.e what product...
26 January 2021 8,044 4 View