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Organic Chemistry - With Access (Looseleaf) (Custom)
- Will acetylene react with sodium hydride according to the following equation to form a salt and hydrogen, H2? Using pKa values given in Table 4.1, calculate Keq for this equilibrium.arrow_forwardIf the G for a reaction is 4.5 kcal/mol at 298 K, what is the Keq for this reaction? What is the change in entropy of this reaction if H = 3.2 kcal/mol?arrow_forwardCalculate the Ka's for the following acids: (a) Citric acid, pKa = 3.14 (b) Tartaric acid, pKa = 2.98arrow_forward
- 8 (Chemical Connections 19C) Once it has been opened, and particularly if it has been left open to the air, a bottle of aspirin may develop a vinegar-like odor. Explain how this might happen.arrow_forward18-28 Arrange these compounds in order of increasing acidity: benzoic acid, benzyl alcohol, phenol.arrow_forward18-31 Formic acid is one of the components responsible for the sting of biting ants and is injected under the skin by bee and wasp stings. The pain can be relieved by rubbing the area of the sting with a paste of baking soda (NaHCO3) and water, which neutralizes the acid. Write an equation for this reaction.arrow_forward
- Using the data in Appendix C, determine which of the following bases is strong enough to deprotonate acetonitrile (CH3CN), so that equilibrium favors the products: (a) NaH; (b) Na2CO3; (c) NaOH; (d) NaNH2; (e) NaHCO3.arrow_forwardcomplete the reaction : 2Al + Fe2O3 =arrow_forwardThe pKaa of the conjugate acid of guanidine is 13.6, making it one of the strongest neutral organic bases. Offer an explanation.arrow_forward
- Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in thefollowing reaction:NH3 + H+ → NH4 +NH3 freely permeates biological membranes, including thoseof lysosomes. The lysosome is a subcellular organelle witha pH of about 4.5–5.0; the pH of cytoplasm is about 7.0.What is the effect on the pH of the fluid content of lysosomes when cells are exposed to ammonia? Note: Ammonium (NH4 +) does not diffuse freely across membranes.arrow_forwardRank the following substances in order of increasing acidity: (a) (CH3)2CHOH, HC≡CH, (CF3)2CHOH, CH3OH (b) Phenol, p-methylphenol, p-[trifluoromethyl) phenol (c) Benzyl alcohol, phenol, p-hydroxybenzonic acidarrow_forward7 What type of structural feature do the anhydrides of phosphoric acid have in common with carboxylic acids?arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning