a bottle of concerntrated HCL (36.5) was labelled as 37% (w/w) and density 1.19m/l.What is hcl molarity?8 27335
In acid base titration, after complet consumption of HCl by NaOH, addition of next drop of NaOH will give pink colour with phenolpthalein indicator. Why this pink colour appear? Why not blue, black, green or anything elese?3 7127
why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ?3 3961
how to pepare 6.8 pH phosphate buffer10 59530
what is pK & pKa value3 9232
what is range of VIVIBLE UV ? WHAT IS UV& VIVIBLE SPCTROSCOPY USE FOR ?5 6651
What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?4 28441
What is difference between Primary and secodary reference standard?2 14609
WHAT IS UNIT OF ABSORBANCE AREA IN HPLC OR UV DETECTER8 16808
why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate1 2620
what is mass spectra ? why it is necessary ?1 3558
difference between IR & NMR spectroscopy ?9 30364
why we are using benzene, anyline in acetic anhdride assay titration method?
using gradient pressure in gas chromatography are not ?using gradient pressure why
how to select short coloum and long coloumn for new molecule
What is the difference between qualitative and quantitative analysis (hplc)
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...
A ha tc is actual defination of retention time?
what is partion and column chromatography
why we do the calibration of limit of stry light in hplc & uv
IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
WHY given much noise PDA dector then VWD Dector
WHAT IS THE PURPOSE WE USE HCL, CHOPPER, BURNER, MONOCHROMATOR in AAS? PLEASE EXPLAIN BRIEFLY
all types of questions asked at the cipla interview
how to selecet an exact coloumn for an new molecule development by hplc how to select exact salt as buffer for new molecule development by hplc what is the the process to select the mode of saparation of compoundes by hplc what is the use of ph of buffer what is use of buffer,ph,organic phase,ans methods how the molecules get saparated in coloumn,