why is acetic acid less conductive than hcl?

1223

a sample of gas occupies a volume of {450.0 ml}at {740 mm Hg}and[16C]determine the volume of this same sample at [760 mm Hg]and [37c]?

5078

what is functionality of polymer? how can we get theoretical and practically?

2574

How to synthesize methylene bisthiocyanate using CH2Cl2 and NaSCN?

3068

What is the composition of ferroin?

1153

what is the principle of UV Vis spectroscopy, AAS, ICP OES,ICPAES, ICP-MS and FTIR

9302

cefoperozone and sulbactam inj. hplc test method

2748

What is aggregate and fragments in SEC?

2162

Describe the historical significance of Protactinium's discovery and its naming.

709

which are the sizes of capsules?

1051

What is molality?

1036

Explain what is meant by "c2 symmetry" and "mirror plane symmetry". Can a molecule with "mirror plane symmetry" ever be chiral? : Polymer Chemistry

1081

Why are use silicon oil mr?

1261

What are filters? Why are they used?

1135

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

1655