a bottle of concerntrated HCL (36.5) was labelled as 37% (w/w) and density 1.19m/l.What is hcl molarity?8 29621
all types of questions asked at the cipla interview3313
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 7489
why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ?3 4431
how to pepare 6.8 pH phosphate buffer10 63365
what is pK & pKa value3 9692
what is range of Vivible UV ? What is UV& Vivible spctroscopy use for ?6 6997
What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?4 30654
What is difference between Primary and secodary reference standard?2 15178
WHAT IS UNIT OF ABSORBANCE AREA IN HPLC OR UV DETECTER8 17469
why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate1 2901
what is mass spectra ? why it is necessary ?1 3742
difference between IR & NMR spectroscopy ?9 31790
what is different when impergnated silica plates are used in separation of azo dyes using column chromatography?
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
why lactose has less charges when packed in steel containers when compared with packing of lactose in polyamide material?
What is diffrence between extractable volume and deliverable volume? Answer pls
Why sometime potassium ortho phosphate mix with acetone use for sample preparation for hplc
Why a1% value is used for some product ? What is the criteria for selection a1% value ?
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
What is stray light in uv what are units for stray light
What is the difference between spectro meter and spectro photo meter?
Tell me about analytical method validation in QC
Which is the highly polar and highly non polar column in HPLC?
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
some product having water content method with pyridine and ethylene glycol mixture instead of methanol? how they are selecting and methanol is not suitable solvent how ?
What are usp limits for theoritical plats,resoution,tailing factor,peak to valley ratio
what is the difference between potentiometric titration and karl fischer titration?