The following reaction is spontaneous as written when the components are in their standard states: 3 Zn (8) +2 Cr³+(ag) → 3 Zn2+(aq) +2 Cr (8) Part A If the [Zn2 is 2 mol L-! determine the value of [Cr3† below which the reaction will be spontaneous in the opposite direction. Express your answer to two significant figures. Templates Symbols uado redo reset keyboard shortcuts help mol L-1

The following reaction is spontaneous as written when the components are in their standard states: 3 Zn (8) +2 Cr³+(ag) → 3 Zn2+(aq) +2 Cr (8) Part A If the [Zn2 is 2 mol L-! determine the value of [Cr3† below which the reaction will be spontaneous in the opposite direction. Express your answer to two significant figures. Templates Symbols uado redo reset keyboard shortcuts help mol L-1

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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For the series of reactions below, what is the overall reaction and the value of ∆Go’(kJ/mol) for this set of reactions? Is the reaction spontaneous? (1) 2 Pi+ H2O ➔Pyrophosphate+ H2O (with 5 mM Mg2+) (2) (Mg)Pyrophosphate + AMP ➔(Mg)ATP (3) (Mg)ATP + creatine ➔creatine-phosphate + (Mg)ADP
Calculate AG° for the following reaction at 25°C. You will have to look up the thermodynamic data. 2 C,H6(g) + 7 02g) → 4 CO2(g) + 6 H20(1) kJ Formula AH (kJ/mol) AGʻ¡ (kJ/mol) S° (J/K - mol) C2H6 -84.7 -32.89 229.5 C2H4 52.3 68.1 219.5 Co(g) -110.5 -137.3 197.9 CO2(g) -393.5 -394.4 213.6 -386.2 121.3 CO2(aq) co,2-(aq) -412.9 -676.3 -528.1 -53.1 HCO3 (aq) -691.1 -587.1 94.98 H2CO3(aq) -699.7 -623.2 187 4 H20() -285.8 -237.2 69.9 H20(g) -241.8 -228.6 188.7 -137.3 197.9 Co(g) -110.5 -393.5 -394.4 213.6 CO2(9) CO2(aq) -412.9 -386.2 121.3 205.0 O2(g) Og(aq) -12.09 16.3 110.88 O3(g) 142.2 163.4 237.6
99+ [References] Use the References to access important values if needed for this question. Consider the reaction H₂(g) + Cl₂(g) →→→→2HCI(g) Use the standard thermodynamic data in the tables linked above. Calculate AG for this reaction at 298.15K if the pressure of HCI(g) is reduced to 13.25 mm Hg, while the pressures of H₂(g) and Cl₂(g) remain at 1 atm. ANSWER: Submit Answer B kJ/mol Try Another Version 1 item attempt remaining Previous Next 3:18 AM 11/22/2022
Consider the corrosion of copper at 25 C using the overall reactionCu(s) + 0.5 O2(g) + 2 H3O+(aq) → Cu2+(aq) + 3 H2O(l)If the partial pressure of oxygen is 0.49 bar, and the concentration of Cu2+(aq) is 1.3 M, at what pH does the reaction become spontaneous?
What is the maximum work that could be obtained from 5.33 g of zinc metal in the following reaction at 25°C? Zn(s) + Cu* (ag) Zn+ (ag) + Cu (8) Substance AG, (kJ/mol) Cu* (ag) Za+ (ag) 65.52 -147.0 Maximum work = kJ
3. Balance the chemical equations and predict the spontaneity of a reaction for the following 4 cases. Explain your answer. (y-axis = energy: x-axis = progress of reaction) H.O() > H0(1) CH, - 0:+ Co: +H0 Case 2: When temperature is high Case 1: at all temperatures Co. - H:0 > CH, -0: LON H,O(K) > H,O(1) Case 4: at all temperatures Case 3: When temperature is low
From data given below, calculate AH, AS, and AG° for the following reaction at 25°C. + 6H,O(1) → 4 H3PO4 (s) P4O10 (s) AH -2984 kJ/mol AG; S* -242 -1279 -2698kJ/mol -229 -1119 229 J/K mol 189 110 AH kJ AS = J/K AG° = kJ
Determine the value of AG for the reaction at 309 K. Assume standard concentration 2NH;(g) = N,H,(g) + H, (g) Given AH (kJ/mol) S°J/{mol · K)) Substance NH3(3) -46.1 192.5 95.35 N2H4(g) H2(3) 238.5 0.0 130.6 O-87.0 kJ -182.5 kJ O -192.6 kJ O 87.0 kJ O 192.6 kJ
Calculate the standard free energy for the reaction given. 2 CH 3OH() + 3 O 2( 9) → 2 CO 2(g) + 4 H 20() Species CH3OH (1) 02 (g) CO2 (g) H20 (1) AG°{ kJ/mol -166.4 0.0 -394.4 -237.2 -465.2 kJ -2069.8 kJ -797.8 kJ -1404.8 kJ
Enter your answer in the provided box. 0 Calculate AG for the following reaction at 25°C. You will have to look up the thermodynamic data. 2 C2H6g)+7 02(g)4 CO2(g)+6 H2O() kJ So (JIK mol) AG'f (kJ/mol) AHf (kJ/mol) Formula 229.5 -32.89 -84.7 C2H6 219.5 68.1 52.3 CНа CO(G) 197.9 -137.3 -110.5 CO2(9) 213.6 -394.4 -393.5 CO2(aq) 121.3 -386.2 -412.9 CO32- (aq) -53.1 -528.1 -676.3 HCO3 (aq) -587.1 94.98 -691.1 HаСОз(аg) 187.4 -699.7 -623.2 69.9 HаО() -285.8 -237.2 H2O(g) 188.7 -241.8 -228.6 197.9 COG) -137.3 -110.5 213.6 CO2(g) -394.4 -393.5 121.3 CO2(aq) O2(g) -386.2 -412.9 205.0 0 0 O3(aq) 16.3 -12.09 110.88 O3(g) 163.4 142.2 237.6 e ere to search F1 F2 F3 F4 F5 F6 F7 F8 F9 #
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