Ans. The molecular masses of all these compounds are comparable : CH3CHO (44), CH3CH2OH (46), CH3COCH3 (46), CH3CH2CH3 (44). CH3CH2OH exists as associated molecule due to extensive intermolecular hydrogen bonding and hence its boiling point is the highest (351 K). Since dipole-dipole ...
The normal BP (i.e. the boiling point at 1 atm) is one of the major physical-chemistry properties used to characterize and identify a compound. Besides being an indicator for the physical state (liquid or gas) of a compound, the BP also provides an indication of its volatility. In addit...
H. Wiener introduced the first topological index when he was working on the boiling points of the paraffin. In [1,2,3], he showed that there are very good correlations between the Wiener index of the molecular graph of organic compounds and different physico-chemical properties of the molecul...
Learn about first-order reaction and understand the concept of rate law. Learn what the rate law equation is and discover examples related to...
The pour point of lubricating and other oils is reduced by adding a small amount of an organic compound built up of 5 membered rings, or 6 membered rings, or both, and aliphatic side chains containing 10 or more carbon atoms and containing nitrogen or oxygen or both in the side chain or...
A good nucleophile is bigger in size, readily polarizable and has less electronegativity value. A more electronegative atom holds the lone pair electron towards itself and does not readily attack electrophiles. Answer and Explanation:1 As the size of the anion increases, the polarizability increases...
The precision for predicted 螖 H vap of 319 compounds, at 298 K and at the normal boiling point, is improved by a factor 2 when comparing to the results of the method of Svoboda. Furthermore, one single group decomposition may now be used for the computation of gas phase properties, T...
The product (SiHMA) is a colorless liquid with a boiling point of 62° C. Proton NMR spectroscopy confirmed tyhe expected structure. The spectrum shows a multiplet at 4.67 ppm, which indicates the presence of the SiH group, and the characteristic resonances at 6.2 and 5.6 ppm (for the ...
Which of the following statements is incorrect ? 02:34 The normality of 30 volume H(2)O(2) solution is : 01:36 One of the following is an incorrect statement. Point out the incorrec... 01:35 Which of the following order are correct ? {:((a)TiH(2) lt BeH(2) l... 02:27 ...
dispersing the particulate silver powder of claim 2 in a non-polar or low-polarity organic solvent having a boiling point of 85° C. or greater. 说明 TECHNICAL FIELD The present invention relates to a spherical, fine, particulate powder of silver (especially one of a particle diameter on th...