Homework Answers
entropy of the universe always increases for a spontaneous process. From graph we can see that Delta S(univ) is positive. So reaction will be spontaneous.
But Delta S(system OR rxn) is negative. So below should be the answer;
2SO2(g) + O2(g) ---> 2SO3(g)
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A reaction occurs and the following plot was created: If Arxn - ASsys, which of the...
(a) Choose all of the statements from below which correctly describe issues pertaining to the relationship between the...
(a) Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ VS.-). Electron stoichiometry need not be used to interconvert a Gibbs free energy change and a reaction emf. A spontaneous reaction has a negative Gibbs free energy change and a positive emf. A coulomb of particles...
The following redox reaction occurs in acidic, aqueous solution HCl(aq) + NH4Cl(aq) + K Cr2O7 (aq)...
The following redox reaction occurs in acidic, aqueous solution HCl(aq) + NH4Cl(aq) + K Cr2O7 (aq) → KCl(aq) + CrCl(aq) + N2(g) + H2O The coefficients in the simplest balanced equation are NHACI Craig H,0 O A. 2,2,7 OB. 2,1,6 OC. 2,1,4 OD. 1,1,3 E. 1,2,7
Which of the following would be true for a reaction that has a positive AS and...
Which of the following would be true for a reaction that has a positive AS and a positive AH? Select one: a. It is not possible to determine without more information. b. This reaction will be nonspontaneous only at high temperatures. c. This reaction will be spontaneous only at high temperatures. d. This reaction will be spontaneous at all temperatures. e. This reaction will be nonspontaneous at all temperatures. You prepared a galvanic cell using Pb(s) | Pb+2(aq) || Hg'...
38. The following redox half reactions are combined in a voltaic cell. Which reaction occurs at...
38. The following redox half reactions are combined in a voltaic cell. Which reaction occurs at the cathode and what is the Eceu? Fe2+(aq) + 2e → Fe(s) E°=-0.44 V Cu²+(aq) + 2e → Cu(s) E°= 0.34 V a) b) c) d) Cu2+(aq) + 2e → Cu(s), Ecell = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecel = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecell =-0.10 V Cu²+(aq) + 2e → Cu(s), Ecel = 0.10 V Cu²+ (aq) +...
In which reactions is the AS rxn positive CIO(g) + O2(g) - CI(g) + 2O2(8) RXN...
In which reactions is the AS rxn positive CIO(g) + O2(g) - CI(g) + 2O2(8) RXN 01 203(g) 302(8) RXN 02 2 NO2(8) N204(8) RXN 03 RXN 02 only RXN 01 and RXN 02 RXN 01 only All three of the reactions None of the reactions RXN03 only RXN 02 and RXN 03 ORXN 01 and RXN03 - You have a process that is: Endothermic, Entropy decreases. Choose the best answer: O always non-spontaneous O spontaneous at high temperatures O...
The following reaction occurs in basic solution: Br2 (aq) → Br– (aq) + BrO3– (aq) Which...
The following reaction occurs in basic solution: Br2 (aq) → Br– (aq) + BrO3– (aq) Which of the following statements is/are correct? This equation describes the self-oxidation-reduction (disproportionation) reaction of bromine in water. The oxidation number of Br changes from 0 to –1 and 0 to +1 in the reduction and oxidation half reactions respectively. In the balanced equation the number of moles of OH– is twice the moles of Br2.
Then you can start! 3 pts When the following reaction which occurs in acidic solution is...
Then you can start! 3 pts When the following reaction which occurs in acidic solution is balanced, the coefficient of His: Sn + NO2 --> SnO2 + NO 0 04 O 8 012 16 3 pts Sn(s) +2 Ag (aq --> 2Ag (s) + Sn2+, Question 33 How many electrons are transferred in the following oxidation-reduction reaction? (aq) 3 pts Question 30 How do we know a complex ion formed when NH3 reacted with Cult? Aprecipitate formed. We don't know...
The first two pages are a background of the lab and there is a page with...
The first two pages are a background of the lab and there is a
page with the results. I would appreciate any help with this. If
needed I have the pre-lab questions as well. I added in the pre-lab
questions I will get them answered and updated again if that is
what is needed.
Report Sheet Name Pre-Lab Questions [Ni(H0) ] + + 6 NHỮ[Ni(NH] + + H2O 1. Given the spontaneous chemical reaction shown above and the fact that...
Which substance is the oxidizing agent in the following reaction? Ca(s) + Zn2+1 Zn2+ (aq) 2+...
Which substance is the oxidizing agent in the following reaction? Ca(s) + Zn2+1 Zn2+ (aq) 2+ - Ca (aq) + Zn(s) Zn(s) Oca 2t (al O cals) None of the above Zn2+ (aq) The oxidation number for each atom in Gaz(SO4)3 is O +2, +4, -1. 0 1. +3, +4, -1. +2, +4,-2. O 1. +3, +6, -2. The molar solubility of Calcium carbonate is 4.2 x 10-6 M. What is Ksp for this compound 3.0 x 0 x 10-16...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H2...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
(a) Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ VS.-). Electron stoichiometry need not be used to interconvert a Gibbs free energy change and a reaction emf. A spontaneous reaction has a negative Gibbs free energy change and a positive emf. A coulomb of particles...
The following redox reaction occurs in acidic, aqueous solution HCl(aq) + NH4Cl(aq) + K Cr2O7 (aq) → KCl(aq) + CrCl(aq) + N2(g) + H2O The coefficients in the simplest balanced equation are NHACI Craig H,0 O A. 2,2,7 OB. 2,1,6 OC. 2,1,4 OD. 1,1,3 E. 1,2,7
Which of the following would be true for a reaction that has a positive AS and a positive AH? Select one: a. It is not possible to determine without more information. b. This reaction will be nonspontaneous only at high temperatures. c. This reaction will be spontaneous only at high temperatures. d. This reaction will be spontaneous at all temperatures. e. This reaction will be nonspontaneous at all temperatures. You prepared a galvanic cell using Pb(s) | Pb+2(aq) || Hg'...
38. The following redox half reactions are combined in a voltaic cell. Which reaction occurs at the cathode and what is the Eceu? Fe2+(aq) + 2e → Fe(s) E°=-0.44 V Cu²+(aq) + 2e → Cu(s) E°= 0.34 V a) b) c) d) Cu2+(aq) + 2e → Cu(s), Ecell = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecel = 0.78 V Fe2+(aq) + 2e → Fe(s), Ecell =-0.10 V Cu²+(aq) + 2e → Cu(s), Ecel = 0.10 V Cu²+ (aq) +...
In which reactions is the AS rxn positive CIO(g) + O2(g) - CI(g) + 2O2(8) RXN 01 203(g) 302(8) RXN 02 2 NO2(8) N204(8) RXN 03 RXN 02 only RXN 01 and RXN 02 RXN 01 only All three of the reactions None of the reactions RXN03 only RXN 02 and RXN 03 ORXN 01 and RXN03 - You have a process that is: Endothermic, Entropy decreases. Choose the best answer: O always non-spontaneous O spontaneous at high temperatures O...
Then you can start! 3 pts When the following reaction which occurs in acidic solution is balanced, the coefficient of His: Sn + NO2 --> SnO2 + NO 0 04 O 8 012 16 3 pts Sn(s) +2 Ag (aq --> 2Ag (s) + Sn2+, Question 33 How many electrons are transferred in the following oxidation-reduction reaction? (aq) 3 pts Question 30 How do we know a complex ion formed when NH3 reacted with Cult? Aprecipitate formed. We don't know...
The first two pages are a background of the lab and there is a
page with the results. I would appreciate any help with this. If
needed I have the pre-lab questions as well. I added in the pre-lab
questions I will get them answered and updated again if that is
what is needed.
Report Sheet Name Pre-Lab Questions [Ni(H0) ] + + 6 NHỮ[Ni(NH] + + H2O 1. Given the spontaneous chemical reaction shown above and the fact that...
Which substance is the oxidizing agent in the following reaction? Ca(s) + Zn2+1 Zn2+ (aq) 2+ - Ca (aq) + Zn(s) Zn(s) Oca 2t (al O cals) None of the above Zn2+ (aq) The oxidation number for each atom in Gaz(SO4)3 is O +2, +4, -1. 0 1. +3, +4, -1. +2, +4,-2. O 1. +3, +6, -2. The molar solubility of Calcium carbonate is 4.2 x 10-6 M. What is Ksp for this compound 3.0 x 0 x 10-16...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
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