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Organic Chemistry (342) - Inorganic Chemistry (123)
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if out of two set of results of moisture analysis first 1 is passing, second one is failing, is it oos ? or vice a versa first 1 is failing and second one is passing. for information mean value to be reported and in mean value the substance is ppassing, is it oos or normaal mean value to be considered?
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What is the chemical formula of alum?
Define a substituted hydrocarbon?
Name the element does the symbol au stand for?
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
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
What is dose dumping? why require to do?
what is meant if aluminium sulfate contains 30% basicity?
How does Actinium interact with other elements, and what are some notable chemical reactions or compounds involving Actinium?
Head-to-tail polymerization of propylene is observed with the [cp2zr(r)]+ catalyst. Explain this result on the basis of molecular-level interactions. : Polymer Chemistry
Is napthalene aromatic?
Why is estimation of copper done at 620 nm wave length?
How is measurement of ph made?
Why we check moisture,ash & AIA in product
what is the difference between potentiometric titration and karl fischer titration?
What is the range of uv & vis lamp in spectrophotometer?
