Calculation of Cr(VI) from K2Cr2O7 ?

01 January 1970 0 6K Report

I need to prepare a stock solution(20 ml) containing 100 mg/ml of Cr(VI). So, how much amount of K2Cr2O7 must be added in the stock .

Badges
Science topic

More Shorif Mollah's questions See All

How to trap KOH vapour (850 deg C)?

Thanks lot for answering. Really appreciated. Could anyone please advise: I am activating some carbon material with KOH (C:KOH=1:7) at 850 deg C under N2. KOH vapour condense into the furnace gas...

01 May 2019 9,843 2 View

How to do Box-Cox transformation in stata? Can any one please suggest me and refer base papers?

I need to know about box - cox transformation. Sometimes, other transformations don't make the data normal. Can box-cox solve the problem?

30 January 2019 1,777 1 View

What are the the steps needed to transform ideas into practical domestic and international policies.

I need some concrete and constructive comments. You are cordially welcome to share your opinion. Your cooperation would be highly appreciated.

03 April 2017 6,857 3 View

Developing countries should invest rents from natural resources in infrastructure and 'invest in investing', because:

Developed countries, donor and aid partner always suggest like this. What is the rationality behind this? You are welcome to participate and give your scholarly opinions. Your cordial supports...

03 April 2017 3,184 2 View

What concrete steps would you take to ensure that the organizational design supports the learning goals?

I need some inspirational guidelines from you scholars!

27 March 2017 3,705 4 View

Leadership, Governance and Development: Is Bangladesh Heading the Right Way?

I need constructive comments and rich text material for one of my current research projects. Please help me Scholars on Leadership, Development and Governance in Bangladesh.

10 March 2017 2,878 5 View

What are the different methods using to evaluate the pertinence of electoral violence and credible democratic election?

when political violence, electoral violence and criminal violence came together what results appear in governance and development? I need evidence and rich texts. would you help me?

02 March 2017 6,427 1 View

The Elephant (or Donkey) in the Boardroom: How Board Political Ideology Affects CEO job prospects?

What are the impacts of decision-making body in employment and productivity?

20 February 2017 4,884 3 View

Culturing PSB, Nitrifying Bacteria and Potassium Mobilizing Bacteria

I have learnt through research papers that, melon crop needs ammonium and nitrate ratio as 2:8 to 2:10 for better brix score or sweetness. As chemical nitrate fertilizers are unavailable in our...

01 January 1970 3,755 3 View

Methyl jasmonate preparation ?

How do I calculate the stock solution to apply 100 uM MeJA for 1000 ml of plant nutrient medium ?

01 August 2024 723 0 View

Shortage Cost Hypothesis?

What can be a hypothesis related to the Stock out Cost or Shortage Cost?

29 July 2024 9,259 2 View

Standard curve of H2O2?

Hi, I need to prepare a standard curve of H2O2 to evaluate the primary products of oxidation. H2O2 I have is 35%. How do I prepare a stock of H2O2 10 microlitere. If s.o has experience, I would be...

26 July 2024 3,460 2 View

How do you get pure primary macrophage cell culture?

I have been harvesting monocyte-derived macrophages from buffalo and cattle fresh whole blood using the same protocol for years and getting good macrophage cultures. Below is the protocol that I...

23 July 2024 4,074 2 View

How do I prepare a working stock solution of 14C sodium bicarbonate to get a final activity of 3uCi?

I need to make a stock solution for radioisotopic incubations of freshwater sediments to study dark primary productivity but I have some confusion as to how I calculate the concentration of 14C...

15 July 2024 5,898 0 View

How to prevent microbubbles during immunofluorescence imaging?

Hi ResearchGate community, how are you? I need to request your help to mitigate the generation of microbubbles detected during the slide preparation of sample metaphase chromosomal spreads. I...

01 July 2024 7,694 4 View

How to make 100ppm 1Liter methylene blue stock solution? How much weigh the dye require?

methylene blue stock solution

19 June 2024 10,030 3 View

What are impact of stagflation on emerging markets performance?

The emerging markets have suffered from a state of stagflation. I hope you know your expectations according to your experiences regarding the implications for the stock markets,,,, risks and...

19 June 2024 4,410 3 View

Why is iPSC in bad condition?

I saw the iPSC about a week after holding the stock (12 well and 3 stocks) and there were very few cells attached, and some cells were differentiated. I wonder what the problem is. The plate is...

12 June 2024 6,087 0 View

How to Dilute Stock solution of ferrous sulphate in frap assay?

I want to do Frap assay with ferrous sulphate heptahydrate (FeSO4.7H2O) as the standard. I have calculate the molarity which is 1 M or 1000 microMolar as the stock solution. How do I determine the...

11 June 2024 3,760 2 View