a bottle of concerntrated HCL (36.5) was labelled as 37% (w/w) and density 1.19m/l.What is hcl molarity?8 30305
all types of questions asked at the cipla interview3344
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 7613
why potassium dicromate use in calibration of UV VIIBLE SPECTROCOPY ?3 4578
how to pepare 6.8 pH phosphate buffer10 64412
what is pK & pKa value3 9812
what is range of Vivible UV ? What is UV& Vivible spctroscopy use for ?6 7111
What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?4 31222
What is difference between Primary and secodary reference standard?2 15369
WHAT IS UNIT OF ABSORBANCE AREA IN HPLC OR UV DETECTER8 17730
why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate1 2981
what is mass spectra ? why it is necessary ?1 3801
difference between IR & NMR spectroscopy ?9 32339
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?
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...
While performing TOC sst analysis Zero shift disabled & sample analysis zero shift enabled why?
Why potassium dichromate was using in Uv calibration?
Ratio of Water and Acetonitrile(diluent) is not recommended to use in cleaning method validation,why?
Identify problem faced when mass spectroscopy is used with HPLC system ?
what is partion and column chromatography
How to determine the EDTA content by potentiometry titration in Ceftriaxine sodium
how the compound separate in coulunm,explain
2. Two grams of Benzoic acid are dissolved in 200 ml of water and extracted with 200 ml of diethyl ether. The distribution coefficient of benzoic acid is 100, and its dissociation constant is 6.5 10-5. Calculate the distribution ratio (D) of benzoic acid at pH 2, 5, and 6. 3. Calculate D at pH 2 to 10 (1 unit apart) in the above problem, and plot D versus pH.
about method developement in hplc
Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?
How to start the dissolution development for unknown tab?
i want model written test paper for the post of analyst in IOCL(indian oil corporation ltd) any one pls help me
In GC calibration,what is the procedure to calibrate the TCD (thermal counductivity detector)suggest ?