Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 22, Problem 22.13QAP
From the standard potentials
calculate the solubility product constant for TlCl.
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The standard potential of a Daniell cell, with cell reaction Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s), is 1.10 V at 25 °C. Calculate the corresponding standard reaction Gibbs energy.
The standard cell potential of a Daniell cell, with cell reactionZn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s), is 1.10 V at 25 °C.Calculate the corresponding standard reaction Gibbs energy.
The standard reaction Gibbs energy for the electrochemical reaction Cr2O7^2- + 2 Fe + 14 H+ → 2 Cr3+ + 2 Fe3+ 7 H2O is -793 kJ mol-1. Calculate the standard cell potential.
Chapter 22 Solutions
Principles of Instrumental Analysis
Ch. 22 - Calculate the electrode potentials of the...Ch. 22 - Prob. 22.2QAPCh. 22 - For each of the following half-cells, compare...Ch. 22 - For each of the following half-cells, compare...Ch. 22 - Prob. 22.5QAPCh. 22 - Calculate the electrode potentials for the...Ch. 22 - Calculate the theoretical potential of each of the...Ch. 22 - Calculate the theoretical potential of each of the...Ch. 22 - Prob. 22.9QAPCh. 22 - Prob. 22.10QAP
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- From the standard potentials Ag2SeO4(s)+2e2Ag(s)+SeO42-E0=0.355V Ag++2eAg(s)E0=0.799V calculate the solubility product constant for Ag2SeO4.arrow_forwardAt 298 K, the solubility product constant for solid Ba(IO3)2 is 1.5 109. Use the standard reduction potential of Ba2+(aq) to find the standard potential for the half-reaction Ba(IO3)2(s)+2eBa(s)+2IO3(aq)arrow_forwardCalculate the electrode potentials of the following half-cells. (a) Ag+(0.0436 M)|Ag (b) Fe3+ (5.34 10-4M),Fe2+ (0.090 M)|Pt (c) AgBr(sat’d),Br- (0.037 M)|Agarrow_forward
- For each of the reactions, calculate E from the table of standard potentials, and state whether the reaction is spontaneous as written or spontaneous in the reverse direction under standard conditions. (a) Zn(s)+Fe2+(aq)Zn2+(aq)+Fe(s) (b) AgCl(s)+Fe2+(aq)Ag(s)+Fe3+(aq)+Cl(aq) (c) Br2(l)+2Cl(aq)Cl2(g)+2Br(aq)arrow_forwardFor each of the following reactions, determine the overall balanced electrochemical reaction, its standard electric potential, and the standard Gibbs energy of the reaction. aCo+F2Co2++2F bZn+Fe2+Zn2++Fe c Zn+Fe3+Zn2++Fe d Hg2++HgHg22+arrow_forwardThe standard cell potential for the Daniell cell, Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) is +1.102 V at 298 K and +1.095 V at 363 K. Calculate the standard reaction entropy.arrow_forward
- Tabulated thermodynamic data can be used to predict the standard potential of a cell even if it cannot be measured directly. The standard Gibbs energy of the reaction K2CrO4(aq) + 2 Ag(s) + 2 FeCI3(aq) → Ag2CrO4(s) + 2 FeCI2(aq) + 2 KCI(aq) is -62.5 kJ mol-1 at 298 K. (a) Calculate the standard potential of the corresponding galvanic cell and (b) the standard potential of the Ag2CrO4/Ag,CrO42- couple.arrow_forward1. Calcium carbonate undergoes thermal decomposition CaCO3(s) ⇌ CaO(s) + CO2(g) at high temperatures. The equilibrium constant for the reaction is 0.0120 at 900 K. Calculate the partial pressure of carbon dioxide, CO2, when calcium carbonate, CaCO3, is heated at 900 K. 2. Calculate the standard cell potential for the reaction Zn(s)|Zn^2+(aq)||MnO^4-(aq), Mn^2+(aq), H+(aq)|Pt(s) 3. The standard reaction Gibbs energy for the electrochemical reaction Cr2O7^2- + 2 Fe + 14 H+ → 2 Cr3+ + 2 Fe3+ 7 H2O is -793 kJ mol-1. Calculate the standard cell potential.arrow_forwardknowing that the standard zinc electrode potential is -0.76V, how does the zinc electrode potential change if the concentration of the zinc sulfate solution ZnSO4 in which it is immersed decreases from 0.1 to 0.01Narrow_forward
- The standard potentials for the reduction of nicotinamide adenine dinucleotide (NAD+) and oxaloacetate (reactants in the multistep metabolism of glucose) are as follows:Oxaloacetate2−(aq)+2H+(aq)+2e−(aq)malate2−(aq) E°= –0.166 VNAD+(aq)+2H+(aq)+2e−NADH(aq)+H+(aq) E° = –0.330 V Calculate the standard potential for the following reaction: Oxaloacetate2−(aq)+NADH(aq)+H+(aq)malate2−(aq)+NAD+(aq)arrow_forwardCalculate the cell potentials of the following cells and write the spontaneous cell reactiona) Zn|Zn2+ (0.0955M)║Co2+ (6.78∙10-3M)|Cob) Cu|Cu2+ (0.0601M)║I- (0.1350M), AgI (s, sat.)|Agarrow_forwardGiven that the standard cell potential is 0.019 V and the overall equation is 2 Cr³⁺ (aq) + 3 Zn (s) → 2 Cr (s) + 3 Zn²⁺ (aq), what is the cell potential for this cell at 25 °C when [Zn²⁺] = 0.0283 M and [Cr³⁺] = 0.1696 M?arrow_forward
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