1. Ans: d
2. Ans: b (BF3 is a Lewis acid but do not contain hydrogen, AlCl3 is a Lewis acid but do not contain hydrogen).
CHM 201 Organic Chemistry 1 Homework Assignment #3 Chapter 03 Introduction to Organic Reaction Mechanism (Acid-Base)...
consider the reaction... Explain the reaction in terms of the Lewis' acid-base theory. Explain 3 significant ways in which the Bronsted-Lowry theory and the Arrhenius theory differ in their definition of acids and bases. Now go back to the product in part 6a and explain the kind of isomerism that the compound displays and why such isomerism arises. [Ni(en)3]2+(aq) c. Considerthe reaction, Explain the reaction in terms of the Lewis' acid-base theory Ni2+ (aq) +3(NHzCH2CH2NHz) (aq) 6a. 6b.Explain 3 significant...
1 a) Write the aqueous acid dissociation reactions for an acid and base dissociation reaction for a base according to the Bronsted-Lowry definition b) Determine conjugate bases of acids and acids of bases c) Write the equilibrium expression for an acid or a base aqueous dissociation d) Evaluate strength of an acid or base based on its Ka or Kb or pKa or pKb. e) Apply Kw at 25oC and at different temperatures. f) Solve for the pH of strong...
2. (a) (i) Draw an arrow-pushing mechanism that illustrates the electron flow in the acid-base reaction below. Use the structures shown below in your arrow-pushing mechanism. (4pts for correct mechanism). (ii) Using pKa values indicated in Table 1.8 (round to nearest whole number) and estimate the equilibrium constant for this reaction (Keq). Show work which led to this value. (3pts for work, 1pt for correct Keq indicated). (iii) Draw a base (assuming the same acid provided below) that would reverse...
Introductory Chemistry Summer 2008 Name Acids and Bases Worksheet 1. Acid and Base Definitions p6 rto and 1. For each reaction, identify the Bronsted-Lowry acid, the Brested-Lowry huse, the conjugate acid, and the conjugate buse. a) HBraq) + H.(I) H.O(n) + Bra AsOy boile b) NHaq) +H.O(I) NH'aq) + OH por (К c) C.H.N(aq) + HOT) CH.NH(aq) + OH 2. Write the formula for the conjugate base of each acid. a) HCI b) HCHO c) HE II. Acid and Base...
Organic chemistry -Carboxylic acid homework Question: In the general chemistry lab, students synthesize aspirin from salicylic acid and acetic anhydride. In the lab, students use sulfuric acid as a catalyst, but I want to consider an alternate method for synthesizing aspirin using sodium acetate as a catalyst: a. Draw the structure of sodium acetate. Is sodium acetate a stronger or weaker base than sodium hydroxide (NaOH). Explain. (1.5 pts) b. Consider the structure of salicylic acid. It contains two potentially...
General Chemistry II Part 3. Now let's consider the effect of structure on acid-base properties: There are two main factors that determine whether a molecule containing X-H bond will behave as a Bronsted-Lowry acid and donate a proton: the strength of the bond and the polarity of the bond. On one hand, the stronger the X-H bond, the lower the molecule's tendency to donate the proton. On the other hand, the more polar the X-H bond, the higher the molecules...
organic chemistry homework problem. 5 and 6 5. Show the complete mechanism of formation of acid catalyzed product below: Cн, OH CH3 OH Нас + HCI - the foliowing NMR pectrum for a molecule with the o ANALVSIS FOR CREDIT An all po to corespanding dro snturation number tra credit C Coect 6. Show the complete mechanism of formation of the product below. Br OH Mg H 2. HCI Et O H +1.
1. A hydrogen atom in the organic base pyridine, CsHsN, can be substituted by various atoms or groups to give XCsH4N, where X is an atom such as Cl or a group such as CH3. The following table gives K, values for the conjugate acids of a variety of substituted pyridines. Atom or Group X (aq) + HCl(aq) → (aq) + Cl-(aq) NO K, of Conjugate Acid 5.9 x 10-2 1.5 x 10-4 6.8 x 10-6 1.0 x 10-6 н....
8) Draw a mechanism with all the proper arrows for the reaction from this experiment. Introduction Alkyl halides can be prepared from alcohols by reactions with hydrogen halides (HCI, HBr, or HI) via nucleophilic substitution. In this type of reaction, the nucleophile displaces a leaving group from a carbon atom of an organic substrate (here the alcohol once protonated). Both electrons of the new bond to the carbon are provided by the nucleophile while the leaving group departs with both...
N(CH3)3 OH 1. heat 95% 5% (E & Z) он 2. H2N a - Proton transfer dSN2 Nucleophilic substitution b- Lewis acid/base e-Electrophilic aromatic substitution c=E2 elimination f= g Nucleophilic subs at carbonyl(acyl Xfer) h-Conjugate (nucleophilic) addn r-carbonyl nucleophilic addn Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a i for your answers. 1. 2. N(CH3)3 OH 1. heat 95% 5% (E & Z) он 2. H2N a -...