Compiled SCH4U Course Review Unit 1: Atomic Structure and Bonding Section 3.3 Electron Configurations and Periodic Trends (pg. 139-157) Feb. 11 For single electron system all orbitals with the same value of have the same energy Atoms with more than 1 electron with the same value of n have different energies (sublevels) Because of interactions between additional electrons All orbitals within a sublevel have the same energy The Fourth Quantum Number: A property of the electron (spin quantum
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Infrared Spectroscopy Organic Chemistry Lab 301A B. The purpose of this lab is to study Infrared Spectroscopy‚ which focuses on the study of the electromagnetic spectrum. The area to be studied is the infrared region‚ which is made up of gamma‚ X‚ and UV rays. We want to be able to identify spectra’s to their complementary structures. The background of this experiment particularly deals with the study of compound structure determination‚ and traits. We must be aware of the functional groups
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phenol soln in test tube + 1 drop FeCl3 soln Aliphatic and Aromatic Hydrocarbons/ Alkenes Bromination in Light (Free Radical Bromination) (Reacts with alkanes) Reagent: Br2 in H2O Observation: decolorization‚ brown ( colorless Procedure: 2 drops of test compound in test tube+ 1 drop 0.05 M Br2 in H2O‚ shake well‚ record observations Bromination in Dark (Electrophilic Addition Halogenation) (Reacts with alkenes) Reagent: Br2 in H2O Observation: decolorization‚ brown ( colorless Procedure:
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solvent was removed in vacuo. The white solid was washed with DCM to afford the title compound as white solid. Yield (0.55 g‚ 96 %). δH (300 MHz‚ CD3OD) 2.57 (1 H‚ br s‚ alkyne CH)‚ 3.01 (1 H‚ br s‚ OCH2)‚ 7.18 - 7.33 (1 H‚ m‚ 5-CH)‚ 7.40 (1 H‚ br s‚ 1-CH)‚ 7.85 (3 H‚ m‚ 6‚7‚8-CH)‚ 8.29 (1 H‚ br s‚ 9-CH). vmax /cm-1 3290 (alkyne C-H stretch‚ m)‚ 1234 (alkyl aryl ether C-O stretch‚ s) and 1185 (sulfonate S=O stretch‚
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Semester: fall 2011 Practice to Chapter 12 (Alkenes & Alkynes *1. Consider the following: CH3CH2CH=CHCH2CH3 CH3CH2CH2CH2CH=CH2 I II CH3CH=CHCH2CH2CH3 CH2=CHCH2CH2CH2CH3 III IV Which two structures represent the same compound? A) I and II B) II and III C) I and III D) II and IV E) None of these *2. Give the IUPAC name for A) 3-Methyl-4-hexyne B) 4-Methyl-2-hexyne C) 2-Ethyl-3-pentyne D) 4-Ethyl-2-pentyne E)
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uncontrollable environmental factors. Introduction An alkyl halide or haloalkane is composed of hydrocarbons with a halogen attached to a sp3-hybridized carbon. It resembles an alkane with a halogen attached to it. Halogens are fluorine‚ chlorine‚ bromine‚ and iodine. Any of these halogens seen to be attached to an alkane‚ could then be identified as alkyl halides. They are generally polar because of the electronegativity difference of carbon (2.5) with the halogen (2.5-4.0). However‚ most alkyl
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found that the product yielded 1‚2-epoxydihydronaphthalene as well as naphthalene. Introduction In 1990‚ professor E.N. Jacobsen reported that chiral manganese complexes had the ability to catalyze the asymmetric epoxidation of unfunctionalized alkenes‚ providing enantiomeric excesses that regularly reaching 90% and sometimes exceeding 98% . The chiral manganese complex Jacobsen utilized was [(R‚R)-N‚N’-Bis(3‚5-di-tert-butylsalicylidene)-1‚2- cyclohexanediaminato-(2-)]-manganese (III) chloride
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ONE-SCHOOL.NET Short Notes: Form 5 Chemistry Rate or Reaction Calculation Rate of Reaction (Average Rate) Rates of reaction = Quantity change of reactants/products Total time for the reaction If the quantity change is immeasurable Rates of reaction = 1 Total time for the reaction Find the Rate From a Graph Average Rate Rates At an Instant The rate of reaction is equal to the slope of the graph The rate of reaction at an instant‚ t‚ is equal to the of quantity against
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(CH3)2CHO- (d) (CH3)3CO- (Q.11) The correct order of decreasing dipole moment is: ( 1 mark ) (a) CH3Cl‚ CH3Br‚ CH3F (b) CH3Cl‚ CH3F‚ CH3Br (c) CH3Br‚ CH3Cl‚ CH3F (d) CH3Br‚ CH3F‚ CH3Cl (Q.12) HCl and HI do not give anti- markovnikov’s addition to alkenes in the presence of peroxides because: ( 1 mark ) (a) Both are highly ionic (b) One is oxidizing and other is reducing (c) One of the step is endothermic in both the cases (d) All the steps are exothermic in both the reactions.
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8. AHydrocarbons Ahydrocarbons are commonly and naturally occurring organic compounds that consist entirely of the elements hydrogen and carbon. They consist of many different chemical subgroups such as aromatic hydrocarbons or arenes‚ alkanes‚ alkenes‚ and alkyne-based
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