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If benzene and tolune both can be mixed... what is the boiling point for the mixture and its density...?
2 5626why 0.005 M sulphuric acid is used to calbrate spectrophotometer and why caffiene is used for calibrating hplc
2 22337What is positive testing in relation to chemistry? For example, the sentence reads "Sample solutions are solutions known to contain one of each of the following ions, silver ion, Ag+(aq), barium ion, Ba2+(aq), and iron (III) ion, Fe3+(aq). Testing solutions are the solutions containing a polyatomic ion that can react with one of the metal ions to give a positive test." I am then asked to define what a "positive test" is. I am currently a student who is pretty new to chemistry, please try and make your answer as simply as possible. Thanks for the help.
UST,
2 15118When we calculate Impurity against impurity std.solution and when we calculate impurity against diluted standard with applying RRF?
2 12086What is discriminating media? How can u justify/select that which media (pH etc...)is suitable for your dissolution study of your compound?
5 28675
how to prepare the 0.001M tio2
1.What is the difference between method validation and method verification 2.Which guidelines proposed to method transfer
What is the requirement for brazil in the analytical method vslidation comparr to ich?
What is aggregate and fragments in SEC?
sir, what does happen ............? naphthal+benzene(or)toluee........> ?
i am going to face exam for the post of executive trainee (chemistry) in M.P Power generation company,i want to know the level of exam ,type of questions can be asked,and about any book whigh i can refer.
Explain the process of protactinium-uranium fractionation and its implications for understanding geological and geochemical processes.
why we are using hexane in calibration of number of drop per mL
what is impurity profile. how to interpret this impurity profile to a drug product or drug substance.
hi, i want last 10 years ongc exam recruitment papers for subject in chemistry ,genaralknowladge.
During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.
What is the difference between fractionation and distillation?
What are the applications of electrochemical cell? : Electrochemistry Corrosion
Name the three elements which are forms carbohydrates?
Explain the chemical formula for dichromate?
