Explain the process of obtaining Protactinium from its primary sources and its purification methods.

666

Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?

1577

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

1865

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

How they found 1mL of K.F reagent is equivalent to 5mg of water and if we change the composition of K.F reagent, is it can neutralize more amount of water?

1780

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

2188

Name the 4 physical states of matter?

1058

Consider the polymerization of 1,2-dichloroethylene, h(cl)c=c(cl)h. What structural variations are possible in poly(1,2-dichloroethylene)? : Polymer Chemistry

1362

What is blank solution?

1092

Explain acid gas?

1053

A polymer's structure influences its physical properties. Describe two structural variations that are possible for polypropylene but not for polyethylene. : Polymer Chemistry

1107

What is intact assay method development.....?

2673

Name the element which has the following ground-state electron configuration: 1s22s22p6?

972

What is bed worth rule? : Electrochemistry Corrosion

1035

iam usig ph buffers merk. manually how to prepare ?

2280