Introductory Chemistry: A Foundation
8th Edition
ISBN: 9781285199030
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- The following reactions illustrate Brnsted acid-base behavior. Complete each equation. a.HI(aq)+?H3O+(aq)+I(aq) b.NH3(l)+?NH4++NH2 c.H2C2O4(aq)+H2O(l)?+HC2O4(aq) d.H2N2O2(aq)+H2O(l)H3O+(aq)+? e.?+H2O(l)H3O+(aq)+CO32(aq)arrow_forwardWrite balanced molecular equations to illustrate the following characteristic reactions of acids, using sulfuric acid (H2SO4). a. Reaction with water to form hydronium ions b. Reaction with the solid oxide CaO c. Reaction with the solid hydroxide Mg(OH)2 d. Reaction with the solid carbonate CuCO3 e. Reaction with the solid bicarbonate KHCO3 f. Reaction with Mg metalarrow_forward. In each of the following chemical equations, identify the conjugate acid-base pairs. a. NH3(aq)+H2O(l)NH4+(aq)+OH(aq) b. PO43(aq)+H2O(1)HPO42(aq)+OH(aq) c. C2H3O2(aq)+H2O(l)HC2H3O2(aq)+OH(aq)arrow_forward
- Write balanced molecular equations to illustrate the following characteristic reactions of acids, using nitric acid (HNO3). a. Reaction with water to form hydronium ions b. Reaction with the solid oxide CaO c. Reaction with the solid hydroxide Mg(OH)2 d. Reaction with the solid carbonate CuCO3 e. Reaction with the solid bicarbonate KHCO3 f. Reaction with Mg metalarrow_forwardHydrazine (N2H4) is like CO32 in that it is a polyprotic base (Kb1 = 85 107 and Kb2 = 8.9 1016). The two conjugate acids are N2H5+ and N2H62+. What is the expected pH of a 0.025 M solution of N2H4? (a) 3.83 (b) 8.32 (c) 10.16arrow_forwardPlace the species in each of the following groups in order of increasing acid strength. a. H2O, H2S, H2Se (bond energies: HO, 467 kJ/mol; HS, 363 kJ/mol; HSe, 276 kJ/mol) b. CH3CO2H, FCH2CO2H, F2CHCO2H, F3CCO2H c. NH4+, HONH3+ d. NH4+, PH4+ (bond energies: NH, 391 kJ/mol; PH, 322 kJ/mol) Give reasons for the orders you chose.arrow_forward
- 5. Given the general equation illustrating the reaction of the acid HA in water, HA(aq)+H2O(l)H3O+(aq)+A(aq)explain why water is considered a base in the Brønsted-Lowry model.arrow_forwardFormic acid, HCOOH, is found in ants. Write a balanced chemical equation to represent why an aqueous solution of formic acid is acidic.arrow_forward. Calculate the pH corresponding to each of the pOH values listed, and indicate whether each solution is acidic, basic, or neutral. a. pOH = 4.32 b. pOH = 8.90 c. pOH = 1.81 d. pOH = 13.1arrow_forward
- Consider the following four biological solutions: (1) bile, pH 8.0, (2) blood, pH 7.4, (3) urine, pH 6.0, and (4) gastric juice, pH 1.6. a. Which solution has the lowest [H3O+]? b. Which solution has the lowest [OH]? c. List the solutions in order of decreasing acidity. d. List the solutions in order of increasing basicity.arrow_forwardIn terms of orbitals and electron arrangements, what must be present for a molecule or an ion to act as a Lewis acid? What must be present for a molecule or an ion to act as a Lewis base?arrow_forwardIn each of the following acid-base reactions, identify the Brnsted acid and base on the left and their conjugate partners on the right. (a) C2H5N(aq) + CH3CO2H(aq) C5H5NH+(aq) + CH3CO2(aq) (b) N2H4(aq) + HSO4(aq) N2H5+(aq) + SO42(aq) (c) [Al(H2O)6]3+ (aq) + OH(aq) [Al(H2O)5OH]2+ (aq) + H2O+()arrow_forward
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