CH102-01, Exam 1.Version 2 Molecular | Dipole Mass (amu) Moment Substance 2CH3 D
ID: 1084935 • Letter: C
Question
CH102-01, Exam 1.Version 2 Molecular | Dipole Mass (amu) Moment Substance 2CH3 Dimethylether, CH3OCH3 Methylchloride, CHaCI Acetaldehyde, CH3CHO 46 1.9 2.7 3.9 Acetonitrile, CHaCN 42 A) CHC B) CH.CHO C CHOCH D) CHCH.CH E CHICN 17) 17) Zinc reacts with aqueous sulfurie acid to form hydrogen gas: In an experiment, 201 ml of H gas is collected over water at 27"C and a barometric pressure of consumed? The vapor pressure of water at 27C is How many grams of Zn have been 2674 tor. A) 0.496 B) 377 g C) 37-10° g D) 496 g E) 4.18 × 106 g 18) 18) Which of the following compounds is most soluble in hexane (CH CH CH:CH CH CH:)? A) methanol B) 1-pentanol C) 1-butanol D) ethanol E) 1-propanol 19) Arrange the following in order of increasing boiling point. 19) CHCHOH CHICHCH HC-O-CHs CHCH NH2 IV A) IlExplanation / Answer
(19) i>iv>iii>ii
( i)ethanol is polar molecule and form hydrogen bonding with oxygen
(ii)ethylamine also form hydron bonding with nitrogen
(iii)alcohol forms more better hydrogen bonding
(iv) propane have no hydrogen bonding