14. When solid iron reacts with air to produce solid iron (II) oxide, which of the following can be said of iron'srole in this reaction? Choose ALL that apply.2Fe(s) + O₂(g) → 2FeO(s)a.b.C.It is a bufferIt is oxidizedIt is reduceda.b.C.15. What is the cell potential of a standard galvanic cell using-0.8018 V-0.7618 V-0.7218 Vd.e.f.a. Dedicationb. Introductionc. Procedured.e.f.a. Dedicationb. Introductionc. Procedure16. Within which of the following formal lab report sections should the repeatable steps for conducting theexperiment be made clear to the reader?It is the oxidizing agentIt is the reducing agentIt is a spectator iond.e.f.iron (III) and zinc (see Table 2 in Appendix A).+0.7218 V+0.7618 V+0.8018 VObservationsAnalysesReferences17. Within which of the following formal lab report sections should the researcher organize and display theircollected data to the reader?d. Observationse. Analysesf. References 10. What is the hydrogen ion concentration of a solution with a pH of 10.33?d.4.68 X 10-4e.2.14 X 10-11f.4.68 X 10-11a.b.C.11. The conjugate of a very weak base is a(n)Very weak acidWeak acidStrong acida.b.C.2.14 X 10-34.68 X 10-32.14 X 10-4a.NaCl(aq) and NaOH(aq)b. NH3(aq) and NH4Cl(aq)C. HNO3(aq) and NaNO3(aqd.e.f.12. Which of the following pairs of chemicals could be used to produce a buffer solution? Choose ALL thatapply.a.b.C.Very weak baseWeak baseStrong based. Mg(OH)2(aq) and H3PO44(aq)2-e.HCO3(aq) and CO3²- (aq)f. HCl(aq) and HCO3(aq)13. Which of the following contains two electrodes? Choose ALL that apply.Electrolytic CellGalvanic CellOxidation Half-Celld. Reduction Half-CellBatteryElectrolytee.f.

10. What is the hydrogen ion concentration of a solution with a pH of 10.33? 2.14 X 10-³ 4.68 X 10-4 4.68 X 10-³ 2.14 X 10-11 2.14 X 10-4 4.68 X 10-11 a. b. C. 11. The conjugate of a very weak base is a(n) Very weak acid Weak acid Strong acid a. b. C. a. NaCl(aq) and NaOH(aq) b. NH3(aq) and NH4Cl(aq) C. HNO3(aq) and NaNO3(aq) 12. Which of the following pairs of chemicals could be used to produce a buffer solution? Choose ALL that apply. d. e. f. a. b. Galvanic Cell C. d. Very weak base e. Weak base f. Strong base Oxidation Half-Cell 13. Which of the following contains two electrodes? Choose ALL that apply. Electrolytic Cell d. Mg(OH)2(aq) and H₂PO4(aq) HCO3(aq) and CO² (aq) e. f. HCl(ag) and HCO3 (aq) d. Reduction Half-Cell e. Battery f. Electrolyte

10. What is the hydrogen ion concentration of a solution with a pH of 10.33? 2.14 X 10-³ 4.68 X 10-4 4.68 X 10-³ 2.14 X 10-11 2.14 X 10-4 4.68 X 10-11 a. b. C. 11. The conjugate of a very weak base is a(n) Very weak acid Weak acid Strong acid a. b. C. a. NaCl(aq) and NaOH(aq) b. NH3(aq) and NH4Cl(aq) C. HNO3(aq) and NaNO3(aq) 12. Which of the following pairs of chemicals could be used to produce a buffer solution? Choose ALL that apply. d. e. f. a. b. Galvanic Cell C. d. Very weak base e. Weak base f. Strong base Oxidation Half-Cell 13. Which of the following contains two electrodes? Choose ALL that apply. Electrolytic Cell d. Mg(OH)2(aq) and H₂PO4(aq) HCO3(aq) and CO² (aq) e. f. HCl(ag) and HCO3 (aq) d. Reduction Half-Cell e. Battery f. Electrolyte

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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1. The equilibrium constant, K, for a monoprotic acid (propionic acid) is 1.3 x 10-5. Which of the following is the correct value of K, for the propionate ion, the conjugate base of propionic acid? a. 1.3 × 10⁹ b. 1.3 × 10-19 c. 7.7 x 104 d. 1.3 × 10-5 e. 7.7 x 10-10 -. Which of the following expressions correctly describes the equilibrium constant K, for the reaction given below? 4 NH3(g) +5 O₂(g) 4 NO(g) + 6 H₂O(g) a. Kc = b. Kc = c. Ke= d. Ke= e. Kc = [NO₂][H₂O] [NH3][0₂] 4[NH3]+5[0₂] 4[NO]+6[H₂0] [NO][H₂O16 [NH,[0₂] [NH₂] [0₂] [NO][H₂O] 4[NO]+6[H₂0] 4[NH3]+5[0₂]
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