Uddipta Nath

6 Questions 9 Answers 0 Followers

Questions related from Uddipta Nath

What does p-value, F-value and R-squared value means in ANOVA?

I am using design expert software for optimising the percentage adsorption response i got by performing adsorption experiments. When the Analysis is done on ANOVA present in the software itself, I...

05 May 2019 9,854 5 View

How long it takes for laboratory based lead nitrate powder to expire?

I am using merck branded lead nitrate powder that has a manufactured date of 2015.

04 April 2019 1,707 2 View

How long does it take for lead to precipitate in lead nitrate solution (lead nitrate + distilled water)?

I want to prepare 1000 ppm lead nitrate stock solution in distilled water. I am concern that storing it for a brief period say, 4-5 days or 1 week may lead to precipitation of lead. Please explain...

03 March 2019 260 5 View

Why do we activate biochar?

I am using biochar for adsorption of heavy metals. Experts are suggesting to activate the biochar through acid or base treatment. what are the benefits of activation? How does it improve heavy...

11 November 2018 3,029 6 View

What is the lower and upper permissible limit of lead in Industrial wastewater of India?

i have to perform adsorption of lead by taking biochar as adsorbent. Therefore i have to set initial concentration range for synthesise lead nitrate solution which would be used for adsorption...

11 November 2018 6,344 3 View

What is the correct procedure of calculating %O from CHNS elemental analysis?

This is a confusion of many, while calculating the %O from CHNS analysis, whether it is necessary to subtract %Ash content? in some papers they do and in some papers they don't. which is the...

10 October 2018 9,403 6 View