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- CH3NH2 is a (a)Arrhenius acid. (b)Arrhenius base. (c)Bronsted-Lowry acid. (c)Bronsted-Lowry base. (e)Louis base.In the following reaction in aqueous solution, the base reactant is and its conjugate acid product is CH3COOH(aq) + NH3(aq) CH3COO (ag) + NH4 (ag) O NH3: NH4 NH3: CH3COO CH3COOH; NH4 CH3COOH; H30+ CH3COOH; CH3CO*52 (a)
- (a) Predict the products of the following acid-base reactions using curved-arrow mechanisms to indicate electron flow. (b) Indicate the acid, base, conjugate acid, and conjugate base of each reaction. (c) Indicate whether the reactants or products are favored at equilibrium a) CH,COOH CH3O b) CH,CH,OH H2N(A) + H20 oH (B)(a) Wr ite an equat ion for the react ion in whichH2C6H7O5-(aq) acts as a base in H2O(l). (b) Write an equationfor the reaction in which H2C6H7O5-(aq) acts as an acidin H2O(l). (c) What is the conjugate acid of H2C6H7O5-(aq)?What is its conjugate base?
- When salt dissolves, it can form either acidic or basic salt solutions. Calcium chloride, CaCl, is a salt that is usedto develop viscosity in polymers, food additives and preservatives, surfactants, and as a pH control in chemicals. On the other hand, sodium amide, NaNH2 serves asa catalyst and a nucleophilic reagent in the industrial production of indigo dye. 1. (a) The aqueous salt solution of CaClis neutral. Explain this statement using the salt dissociation equation in water. The aqueous salt solution of NaNHzis basic. Explain this statement using the salt dissociation equation in water. (b)In the following reaction in aqueous solution, the acid reactant is and its conjugate base is CH;COOH(aq) + H2O * CH3CO0 (aq) + H30 (aq) A CH3COOH; CH3C00 B CH3COOH; NH4 NH3; CH3CO0 D) NH3; NH4" E CH3COOH; H30*In water solution, acetylsalicylic acid acts as a weak acid:CH3COOC6H4COOH (aq) + H2O (l) ⇌ H3O+ (aq) + CH3COOC6H4CO2- (aq) Are the following Brønsted-Lowry acids or Brønsted-Lowry base H2O (l) CH3COOC6H4COOH (aq) H3O+ (aq) CH3COOC6H4CO2- (aq)
- The acid HA has pKa 7.00. (a) Which is the principal species, HA or A, at pH 6.00? (b) Which is the principal species at pH 8.00? (c) What is the quotient [A]/[HA] at (i) pH 7.00; (ii) at pH 6.00?1) Complete the following reactions and identify the acid, base, conjugate acid and conjugate base. CH;CH,NH2 (aq) + H2O (1) a) CH;COOH (aq) + H,O (I) b) c) Identify the conjugate base and conjugate acid of each of the following. Conjugate Base Molecule Conjugate Acid HCO3 H20 HSO4- H2PO4C6H5NH2 + H2O <-> C6H5NH3+ + OH-. Aniline, a weak base, reacts with water according to the reaction. (a) a sample of aniline is dissolved in water to produce 25.0 mL of 0.10 m solution. The pH of the solution 8.82. Calculate the equilibrium constant, Kb, for this reaction (b) What is the percent disassociation for the solution in part (a) (c) 25.0 mL of 0.10 HCI was then added in a titration experiment. What is the pH at the equivalence point?