When the following skeletal equation is balanced under acidic conditions, what are the coefficients of the species shown?HNO2 +|ClO3 -NO3¯+CIO2Water appears in the balanced equation as a|(reactant, product, neither) with a coefficient of(Enter 0 for neither.)Which species is the oxidizing agent?

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Answered: When the following skeletal equation is…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 25QAP: For the following half-reactions, answer these questions....

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A solution contains the ions H+, Ag+, Pb2+, and Ba2+, each at a concentration of 1.0 M. (a) Which of these ions would be reduced first at the cathode during an electrolysis? (b) After the first ion has been completely removed by electrolysis, which is the second ion to be reduced? (c) Which, if any, of these ions cannot be reduced by the electrolysis of the aqueous solution?
The iron content of hemoglobin is determined by destroying the hemoglobin molecule and producing small water-soluble ions and molecules. The iron in the aqueous solution is reduced to iron(II) ion and then titrated against potassium permanganate. In the titration, iron(ll) is oxidized to iron(III) and permanganate is reduced to manganese(II) ion. A 5.00-g sample of hemoglobin requires 32.3 mL of a 0.002100 M solution of potassium permanganate. The reaction with permanganate ion is MnO4(aq)+8H+(aq)+5Fe2+(aq)Mn2+(aq)+5Fe3+(aq)+4H2O What is the mass percent of iron in hemoglobin?
Consider three metals, X, Y, and Z, and their salts, XA, YA, and ZA. Three experiments take place with the following results: • X+hotH2Obubbles • X+YAnoreaction • X+ZAXdiscolored+Z Rank metals X, Y, and Z, in order of decreasing strength as reducing agents.
Specify which of the following equations represent oxidation reduction reactions, and indicate the oxidizing agent, the reducing agent, the species being oxidized, and the species being reduced. a. CH4(g)+H2O(g)CO(g)+3H2(g) b. 2AgNO3(aq)+Cu(s)Cu(NO3)2(aq)+2Ag(s) c. Zn(s)+2HCl(aq)ZnCl2(aq)+H2(g) d. 2H+(aq)+2CrO42-(aq)Cr2O72-(aq)+H2O(l)
For the following half-reactions, answer these questions. Ce4+(aq)+eCe3+(aq)E=+1.61VAg+(aq)+eAg(s)E=+0.80VHg22+(aq)+2e2Hg(l)E=+0.80VSn2+(aq)+2eSn(s)E=0.14VNi2+(aq)+2eNi(s)E=0.24VAl3+(aq)+3eAl(s)E=1.68V (a) Which is the weakest oxidizing agent? (b) Which is the strongest oxidizing agent? (c) Which is the strongest reducing agent? (d) Which is the weakest reducing agent? (e) Will Sn(s) reduce Ag+(aq) to Ag(s)? (f) Will Hg(l) reduce Sn2+(aq) to Sn(s)? (g) Which ion(s) can be reduced by Sn(s)? (h) Which metal(s) can be oxidized by Ag+(aq)?
. To obtain useful electrical energy from an oxidation-reduction process, we must set up the reaction in such a way that the Oxidation half-reaction and the reduction half-reaction are physically one _____another.
When balancing reactions in Chapter 3, we did not mention that reactions must be charge balanced as well as mass balanced. What do charge balance and mass balance mean? What happens in a redox reaction that requires charge to be balanced?
When the following skeletal equation is balanced under acidic conditions, what are the coefficients of the species shown?MnO4- + HgMn2+ + Hg2+Water appears in the balanced equation as a ___ (reactant, product, neither) with a coefficient of ___. (Enter 0 for neither.) Which species is the reducing agent?
When the following skeletal equation is balanced under acidic conditions, what are the coefficients of the species shown?Ag+ + Cl2 ---> Ag + ClO3-Water appears in the balanced equation as a (reactant, product, neither) with a coefficient of . (Enter 0 for neither.) What species is the reducing agent?
When the following skeletal equation is balanced under acidic conditions, what are the coefficients of the species shown?Mg2+ + NO ----> Mg + HNO3Water appears in the balanced equation as a  (reactant, product, neither) with a coefficient of . (Enter 0 for neither.) What species is the reducing agent?
When the following skeletal equation is balanced under acidic conditions, what are the coefficients of the species shown? ____NiO2 + ____ H3AsO3 ----->_____  Ni2+ + ____H3AsO4Water appears in the balanced equation as _______ (reactant, product, neither) with a coefficient of _________ . (Enter 0 for neither.) Which species is the oxidizing agent? _______________
When the following skeletal equation is balanced under basic conditions, what are the coefficients of the species shown? _____Br2 +_____ Ag2O ------->_____  BrO3- + _____ AgWater appears in the balanced equation as ________ (reactant, product, neither) with a coefficient of__________ . (Enter 0 for neither.)Which species is the reducing agent?__________

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