The two asphaltenes were divided into six subtractions (A1-A6) by the mixed solvent (toluene/n-hexane or toluene/n-heptane). The differences between X-A and P-A were studied and the differences between subtractions were compared. And the effects of X-A, P-A and subtractions on oil-...
The condensed structural formula consists of writing all the atoms on one line, with subscripts as needed. The name heptane tells us the molecule is... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our ...
Exploiting the narrow pore window dimension, chromatographic separation of binary mixture containing n-pentane and n-hexane; 2-methylbutane and n-pentane; 2,2-dimethylbutane, 2-methylpentane and n-hexane have been successfully studied. Further, an alkane mixture containing 2-methylbutane, n-pentane...
Write the chemical formula and the condensed structural formula for each of the following compounds: a) 1-propene b) 2-heptene c) 2-octyne d) 1-pentyneGive the IUPAC name for each of the five constitutional isomers of molecular formula C6H14...
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Structure assignment and synthesis of compound 1 The mass spectrum of compound1suggested a structure closely related to isophorone, with a base peak occurring atm/z83 and a putative M+ion atm/z154, indicating a C9H14O2molecular formula (Fig.3, MS1). IR spectrum for this compound contained a...
According to this model, the TA signal at any time delay t, and wavelength λ, ΔA(t,λ), is reconstructed from the superposition of the nth Ci(t) and EADSi(λ) products according to the formula:(1)∆Atλ=∑i=1nCitEADSiλwhere Ci (t) is the time-dependent concentration of the...
Although many compounds of this series have been reported [3–6], only a few crystal structures, of the formula P(O)[N(H)R]X2 [7], P(O)[N(H)R]3 [8,9], RC(O)- N(H)P(O)X2 [10] and RC(O)N(H)P(O)[NR1R2]2 [11– 13], are currently known. These compounds were...
7. The composition of claim 1 wherein the reactive liquid modifier is an acrylamide functionalized compound having the general formula Y—[(O—(CO)—(CH2)5)m—O—(CO)—(CH2)p—C(R2)(R3)—NH—(CO)—CH═CH2]n wherein Y is a branched or linear alkyl chain having from about 1 to...
2. The adhesive of claim 1 wherein the polyepoxide is a compound having an epoxy equivalent weight of about 18-200 which contains more than one group per molecule of the formula ##STR2##. 3. The adhesive of claim 2 wherein the polyisocyanate is one having at least two isocyanate groups...