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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 41900In 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 11389What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?
4 41348why phenolpthalin gives pink colour when we titrate aganist sodium hydroxcide & phenolpthalin gives colourless titrate aganist hydrochlric acid which is un burate
1 5411Post New Analytical Chemistry Questions
1)What's the meaning of Absorption,give a example. 2)What's the meaning of Adsorption,give a example. 2)what is the difference between Absorption and Adsorption.
Why potassium dichromate is used in calibration of uv?
how will you do the prep for unstable componds?
HI,I CLEARED BOB CLERK EXAM. MY INTERVIEW WILL BE ON 9TH OCTOBER,2010.PLEASE SEND ME INTERVIEW QUESTIONS AND ANSWERS. THANK YOU.
Why dissolution test is not performed in all of the products
What is gelatinization?
How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.
For standardization of volumetric solutions, acceptance limit for concentration is considered as 10% of nominal concentration and %RSD as NMT 0.2% (for appropriate no. of replicates). But , if %RSD has not met, what should be further action?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
In Dissolution Test why limit is define Q+5% what is the role of +5%.
in which situation require to use paddle and basket?
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,
what is the acceptance criteria for enteric coated tablets in 0.1n hcl validation in each parameter?
In which situation we require to analytical method validation of excipient?
What is the main difference between ODS1 and ODS2 Hplc column.
