What is an indicator electrode?

784

Define alum?

644

Explain what is the net charge of a non-ionized atom?

536

why octanol used to determine the partition coefficient ?

1905

Explain how can you tell if there is a dipole moment or not?

556

what is the indicator used?

576

Why are metals often good catalysts? : Polymer Chemistry

549

How Many grams of solid iodine are produced by the decomposition of 25.4g of hydrogen iodine gas?

2361

Define a substituted hydrocarbon?

600

hi i am siva icompleted m,sc in organic chemistry in 2008&working as alecturer can u send me the interview qusetions with answers . i expected that i got 135 - 140 marks is there any chance to get selection my interview is on may 7th 2010

1639

My question about gas chromatography sulfur chemiluminsecence detector. I test unknown sample gas by GC-SCD (calibrated ) and the result of *H2S is 279 PPM , *but when I test the same sample with the GC-TCD (calibrated ) the value of *H2S is 2500 PPM . I'd like to inform you that both GCs are calibrated and have very good operation conditions with stable parameters . the question is if the sample gas with higher H2S over detection limits of SCD detector (1000 ppm). why the result it 279 ppm Best regards

1101

An atom has 18 protons and 22 neutrons. Tell me its mass number?

567

What are some common compounds or chemical reactions involving Protactinium, and how do they contribute to our understanding of this element?

115

Protactinium has potential applications in nuclear reactors. Could you elaborate on its role in enhancing reactor efficiency or safety?

138

what is the difference between elctrefining and electrolysis?

1730