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- The conjugate base of benzoic acid is used as a 72 preservative. Write the equilibrium reaction for this weak acid in aqueous solution. ОН Benzoic acid a. What substances are present at equilibrium? b. At equilibrium, are reactants or products favored, and why? c. Are the concentrations of benzoic acid and benzoate constant or changing at equilibrium? d. What happens to the equilibrium if more hydronium ions are added to the reaction? e. Label the conjugate acid-base pairs.16. What is one use for sodium and potassium salts of long-chain carboxylic acids? Oa. food preservative b. athletes foot treatment C. soaps d. pH buffer e. blood anticoagulantAmines and Amides Acetamide Benzamide 2. Odor 3. Solubility D. Hydrolysis of an Amide 1. Acid Hydrolysis a. Acetamide b. Benzamide Acetamide Benzamide 2. Odor Acetamide Benzamide 3. Change in color of red litmus paper 4. Odor after adding NaOH
- dentify the conjugate base in the reaction of propanoic acid CH3CH3COOH reacting with methyl amine, CH3NH2. a. CH3NH2 b. CH3CH3COOH c. CH3NH3+ d. OH-1 e. CH3CH3COO-1H3C—N̈H2 reacts with BF3 in a combination reaction, forming H3C—NH2—BF3 with a covalent bond between N and B. What is the role of H3C—N̈H2 in this reaction? a. Lewis acid b. Brønsted-Lowry base c. Brønsted-Lowry acid d. Lewis base9. NH-acidic properties are shown by? A. Sulfacyl sodium B. Sodium barbital C. Theobromine D. Hexamidine (primidone).
- H3C—N̈H2 reacts with BF3 in a combination reaction, forming H3C—NH2—BF3 with a covalent bond between N and B. What is the role of H3C—N̈H2 in this reaction? a.Brønsted-Lowry acid b.Lewis base c.Brønsted-Lowry base d.Lewis acidWhich of the following compounds is likely the least reactive in dilute aqueous NaOH? A. EtCOCl B. CH3CONEt2 C. CH3C(O)OC(O)CH3 D. CH3COOEtWhich one is the weakest base? A. aniline B. ammonia C. tetramethyl ammonium hydroxide D. ethylamine
- Which is the correct reactant needed to complete the following reaction: A. ZI + ? [H+], NaBH3CN B. ZI C. ZI N D. NH₂17. During alkalosis of a protein, shown below, salt bridges are broken, resulting in denaturation. Which choice shows the products of alkalosis? Н alkalosis H-N NO salt bridge Он Н Н H-N H-N- Но. Н d. a. Н Н H-N b. Н Н e. H-N- но Н c. IIZ:Equilibrium of methyl orangea) Give a balanced reaction equation for the reaction of methyl orange with 6M HCl b) Give a balanced reaction equation for the reaction of methyl orange with 6M NaOHc) Use Le Chatelier’s Principle to explain the color change when acid or base is added to methyl Orange. Reaction: HMO = H^+ +MO^-