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Organic Chemistry (342) - Inorganic Chemistry (123)
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How to caluclate %w/v& %w/w ple give examples solids&liquids 10%NAOH W/W 10%W/V- 20%HCL W/W &W/V
2503why all liquid raw materials fallows residue on evaporation at 105Degree temp. but methanol bp 60Degree
1 3865why using Potentometry What Purpose? differance between manual and potentiometry? why using Some of materials in usig potentiometry? What is use of mericuric acetate in Potentiometry
1 5743iam using ph instrument lab india make.3ponit and 5point.in calibration time 3point slope will come 98.89and 96.87.that limit is 85 to 105.what basis slope will come.any calucalation between them.5point wiicome slope 99.89?why 3p0int came 2 values
1 5420when we talk about change in entropy we consider total entropy means of surround +entropy of system but when we talk about change in Gibss free energy we consider entropy of system.explain with reason.
ABC,
2040
could negative ions be produced by bombardment process in mass spectrometry?
what happens to the unit particles of a solute when it dissolves on a liquid?
What is use of acetonitrile compare to methanol in RP-HPLC Method development?
My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards
What is the reaction that occurs between iodine and sodium thiosulphate?
hi friends, dis is ramana reddy.i have been workining in bulk drugs as QC chemist.i would like 2 change d company.i want sample RESUME,OFFER LETTER,APPOINTMENT LETTER,PAY SLIP.if any body has these documents,pls send 2 my mail id i.e ramanareddy.sdpl@ymail.com
Actinium is part of the actinide series. Could you explain the significance of this series and its placement in the periodic table?
how we can identify the impurity is coming below loq at transfering site?
How does Actinium contribute to our understanding of nuclear structure and properties, and what experiments or studies have been conducted to explore this aspect?
which cationic polymer is compatible with poly aluminium chloride?
What is the requirement to give RFlow when using RID detector?
Why is eriochrome black t indicator cannot be used in this experiment?
USP methodology, EP methodology, IP methodology, among three if possible to use one methodology for qualify working standard to use USP, EP, IP ? Please explain...
in dissolution why pool sample needed? in which type of drug pool sample need?
what is the purpose of using cyclhexane in synthesis?
