what is mean by ambient temperature?

916

Why to use propyl paraben in HPLC gradient calibration

7483

What is viscosity-coefficient of a liquid?

1417

Acid value definition is number milligrams of koh required to nuetralise the acid present in one gram oil & fats but why not use naoh for nuetralisation?

1152

Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?

2184

Do all explosions produce carbon dioxide or carbon monoxide?

1118

In pickling process of titatium with HCL . how to know if the acid is not effective after pickling several batch. is there any test to know it. (not practically)

1680

Why we used in n-butyl acetate water content terminology while in ethyl acetate we used moisture content terminology?

1856

Arrange by acidic values : phenol, nitrotolouene and o-cresol?

1083

What is the difference between fractionation and distillation?

1126

The rate constant for the second order reaction is 0.54/M.s at 300oC. How long (in sec) would it take for the concentration of NO2 to decrease from 0.62M to 0.28 M? 2NO2(g) 2 NO(g) + O2(g)

2597

What is the number of protons in an atom?

1056

in dissolution why pool sample needed? in which type of drug pool sample need?

3179

What is the purpose of octyl silane columns?

4290

How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain

2389