Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- Consider the following half reaction: Na (ag) + e → Na(s). For this reaction, E°(red) = -2.7 V. If this reaction is tripled so that 3 Na ions are reduced to 3 Na atoms, what is the new E°(red)? ->arrow_forwardConsider the galvanic cell based on the following half-reactions. Ag+ + e− → Ag ℰ° = +0.80 V Fe2+ + 2 e− → Fe ℰ° = −0.44 V (a) Determine the overall cell reaction and calculate ℰ ° cell . (b) Calculate ΔG° and K for the cell reaction at 25°C. (c) Calculate ℰcell at 25°C when [Ag+ ] = 1.0 ✕ 10−4 M and [Fe2+ ] = 1.0 ✕ 10−2 M.arrow_forwardCalculate the K and AG for the following reaction at 25 °C: Mg(s) + Pb2+(aq)=Mg2+(aq) + Pb (s) Note: Reference the Standard reduction potentials at 25 °C and Fundamental constants tables for additional information. Part 1 of 2 Round your answer to 3 significant digits. Кс Part 2 of 2 G Round your answer to 4 significant digits. AG° kJ molarrow_forward
- What is E°cell for the following reaction? Is this reaction spontaneous under standard conditions? Cu2+(aq) + Sn2+(aq) → Cu(s) + Sn4+(aq) Cu2+(aq) + 2e– → Cu(s) E° = 0.34 V Sn4+(aq) + 2e– → Sn2+(aq) E° = 0.13 V Group of answer choices –0.21 V, nonspontaneous 0.21 V, spontaneous 0.21 V, nonspontaneous –0.21 V, spontaneousarrow_forwardConsider the following half-reactions. Cl2(g) + 2 e– → 2 Cl–(aq) E° = +1.36 V Ag+(aq) + e– → Ag(s) E° = +0.80 V Cu2+(aq) + 2 e– → Cu(s) E° = +0.34 V Sn2+(aq) + 2 e– → Sn(s) E° = –0.14 V Al3+(aq) + 3 e– → Al(s) E° = –1.66 V Which of the following species will reduce Cu2+(aq) ion? Ag(s) and Sn^2+(aq) Cl^-(aq) and Ag(s) Cl2(g) and Ag^+(aq) Sn(s) and Al(s) Sn^2+(aq) and Al^3+(aq)arrow_forwardDetermine E for the half-reaction.arrow_forward
- The standard state cell potential for the reaction below is 1.030 V. Zn(s) + Hg,Cl,(s)→ ZnCl,(aq) + 2Hg(1) Calculate the standard state Gibb's energy change (in kJ) at 298K for the reaction. O -99.4 kJ O -199 kJ O 199kJ O 99.4 kJarrow_forwardGiven the following two half reactions, Cd2+(aq) + 2e- → Cd(s) E˚ = -0.40 V 2 Ag+(aq) + 2e- → 2 Ag(s) E˚ = 0.80 V determine E˚ and the spontaneity of the following reaction: 2 Ag+(aq) + Cd(s) → 2 Ag(s) + Cd2+(aq)arrow_forwardFind K for the following reaction at at 25°C. E cell = -0.10 V Cd²+ (aq) + Fe(s) Cd(s) + Fe2+ (aq) 4.2 x 10-4 O 1.2 x 10-5 1.2 x 105 4.2 x 1010arrow_forward
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