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a bottle of concerntrated HCL (36.5) was labelled as 37% (w/w) and density 1.19m/l.What is hcl molarity?
8 42305In 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 11532What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?
4 41504why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate
1 5496Post New Analytical Chemistry Questions
Many times I don't got a caffeine peak in calibration of hplc using guard column ❓
How to set specification of assay, fisdolution and related substances?
What is importance of pH in the Heavy metal test and How it effect on the test results?
why sre you used Potassium hydrogen phthalate in standarisation of 1N NaOH and 0.1 N Perchloric Acid?
What is gelatinization?
is it necessary to do HPLC calibration at wavelength 315nm if we are doing analysis at this wavelangth
if rsd failed then what require to do?
Principle of single pan analytical balance
How can the GC or HPLC method is selected to determine the impurity profile in drug product?
Why use only methanol,used determinationof moisture content not use other solvents
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
what is difference between UV - VISIBLE MODEL NO like 1600,1601,1700 etc ? plz explain me
what are risk assement in the analytical qbd?
[3/28, 20:52] Manoj P Venkatpurwar: how many impurities require to inject in assay specificity that how we can find out? and in Rs also how?
How you develop a method in HPLC?
