heat of evaporation of methyl ethyl ketone at 78.2 C is 443, 2 J / gr. determine the heat of evaporation at 185 C. It is known that Tc = 535.6 and Pc = 41.2 bars for methyl ether ketones
heat of evaporation of methyl ethyl ketone at 78.2 C is 443, 2 J / gr....
30-What is the common name for 2-butanone? aa, methyl ethyl ketone b. isobutyl ketone c. diethyl ketone d. butyl ketone 31-What is the IUPAC name for ? CH3 CH2BECH2CHO a. 3-bromobutanal b.3-bromobutanone c. 2-bromobutanal d.2-bromobutanone 32- Benzaldehyde can be reduced by the Wolff- Kishner method, too. What is the product? a-Benzene bb- Toluene C-Benzyl alcohol (phenylmethanol) d-Cyclohexane 33-Addition of a Grignard reagent to formaldehyde followed by H30+ gives aa 1° alcohol b-2° alcohol c- 3° alcohol d-ketone
Answer the following questions using these molecules: diethyl ether, chloroacetone, methyl ethyl ketone, xylene, 2-butene, 2,2-dimethyl propane, acetic acid a) Which compounds would show only singlets in the proton spectrum, in the region of chemical shift less than/equal to 6? b) Which methyl group among all the compounds will give a proton signal at highest field? c) Which compound(s) will give a proton shift at lowest field? d) Which compound(s) will give a carbon signal at lowest field? e) Which...
Lumili alle for the following compound? - (CH)CHCH.COCH,CH, a. 2-methyl-4-hexanone c. 2-methyl-3-hexanone b. 5-methyl-3-hexanone d. ethyl isopropyl ketonel. 25-Identify the directing effect of the ring substituent in the following reaction: BO, HBO. (a) o.p., activating (b) m-, deactivating (c) o.p., deactivating (d) None of these 26--Ketones are easily reduced to CH3-C-CH3 a-Secondary alcohol b- Primary alcohol c- to acetaldehyde d- to carboxylic acid 27-. What is the structure of the azo group? a-N- b-N-N- C-NEN- d-NEN- 28-What class of organic...
1. Draw the structures of the following compounds: a. 3-ethyl-4-methyl-2-hexene b.2-chloro-butyl acetate c. Ethylbenzene d. 2-methyl-3-pentanol e. 2-methylpropyl methyl ether 2. A) Distinguish between photodissociation and photoionization B) Use energy requirements of these two processes to explain why photodissociation of oxygen is more important than photoionization of oxygen at altitudes below about 90 km.
1. What is the best name for the molecule shown? B. 3-ethyl-2-methylhexane C. D. 2-methyl-3-propylpentane 2. What functional group is present in the molecule shown? 0 A Carbaxylic adid 8. Amine C. Ester D. Ether 3. What type of intermolecular forcels) is/are present in the molecule shown? A London dispersion forces (induced dipole forces) B. Dipole-dipole forces C. Hydrogen Bonding D. All of the above 19
Name Chem 1120 Homework #2: Liquids, Solids, and Intermolecular Forces Ethyl Alcohol 70 J/g C 854 J/g 78。 2.43 J/g C 115。1 105 J/g 0.97 J/g C 4. The heating curve shown above is forethanol. How much heat is required to warm a 50.0 g sample of at-90°C to 88 C?
2. Draw structures corresponding to the following IUPAC names a. 2-methy-1,J-hexadiene b. (Z)-3-ethyl-2,2-dimethyl-3-heptene a. Z-me c. 3.4-diisopropyl-2,5-dimethyl-3-hexene d. (E)-5-methyl-4-hepten-2-ol
for f - j draw structures pls help with #1 as well f) 4-methyl-2-pentene 9) trans-8-ethyl-3-undecen h) E-5-bromo-4-chloro-7,7-dimethyl-4-undecene i) Z-1,2-difluoro-cyclohexene i) 4-ethenylcyclohexano Predict the major organic product or products of each of the following reactions. a) (CH3),CHCH-CH: H2SO4 HO b) (CH3),CHCH-CH, 1. Hg(OAc), H20 2. NaBH4 1. BH-THF c) (CH3),CHCH-CH2 2. H,O, NaOH
HO HW2. A student ran the Grignard reaction below. CH, MgBr diethyl ether 2-pentanone 2-methyl-2-pentanol Upon completing the reaction above (assume all workups), the student performs a crude NMR and FT-IR of the material prior to any purification. The spectra obtained are shown below: transmittance Use the spectra and the table found in the paper by Hugo E. Gottlich, Vadim Kotly, and Abraham Nudelman J. Org. Chem. 1997, 62, 7512-7515) to help answer the following questions (see next page of...
Problem 2: Heat exchanger (25 points) Cold water (op 4179 J/kg K) enters the tubes of a heat exchanger at 20 °C at a rate of 3 kgs. while hot oil (cp 2200 J/kg.K) enters the shell at 130 C at the same mass flow rate and leaves at 60°C The heat exchanger consistsoftwo shells and 20 tubes, each executing four passes (two passes per shell). If the W/m2-K, assume the tube wall is very thin with convective heat transfer...