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28. A Lewis Acid is an electron A) donor B) acceptor C) eliminator D) coupler 29....
29. A process has a AH° of 8.5 kJ/mol and a AS™ of 35.2 J/mol-K. What...
29. A process has a AH° of 8.5 kJ/mol and a AS™ of 35.2 J/mol-K. What is AGº at 300 K for this process? A) -23.0 kJ/mol B) -2.06 kJ/mol C) +33.4 kJ/mol D) +1.24 kJ/mol cd2 (aq) + 2e Sn2 30. A spontaneous voltaic cell is based on the following two standard half-reactions: (aq) + 2e Cd (w) Eº red (Ca/Cd) = -0.40 V → Sn) Ered (Sn/Sn) = -0.14 V What is the standard cell potential, Ecell? A)...
29. A process has a AHⓇ of 8.5 kJ/mol and a AS of 35.2 J/mol-K. What...
29. A process has a AHⓇ of 8.5 kJ/mol and a AS of 35.2 J/mol-K. What is AG at 300 K for this process? A) -23.0 kJ/mol B) -2.06 kJ/mol C) +33.4 kJ/mol D) +1.24 kJ/mol Sn (aq) 30. A spontaneous voltaic cell is based on the following two standard half-reactions: ca" () + 2e Cd () Eº rod (Cd?/Cd) = -0.40 V + 2e → Sn (1) E® red (Sn 2/Sn) = -0.14 V What is the standard cell...
Q(33) A Lewis acid is? A) A proton donor. B) A proton acceptor. C) An electron...
Q(33) A Lewis acid is? A) A proton donor. B) A proton acceptor. C) An electron pair donor. D) An electron pair acceptor. E) An anphoteric species. Q(34) A Brønsted-Lowry acid is? A) A proton donor. B) A proton acceptor. C) An electron pair donor. D) An electron pair acceptor. E) An anphoteric species. Q(35) What is the relationship between Ka and Kb for a conjugate acid base pair? A) Kw=Ka+Kb B) Kw=K.*Kb C) Kw=Ko-Kb. D) Kw=Ka/Kb. E) Kw=K? Q(36)...
please help, thanks! 7. What is the correct cell notation for the reaction below? Cd(aq)+Ni(s)-Cd(s)+ Ni(aq)...
please help, thanks!
7. What is the correct cell notation for the reaction below? Cd(aq)+Ni(s)-Cd(s)+ Ni(aq) a. Cd Cd| Ni | Ni d. Ni Cd I N | Ca b. Cd CdNi | Ni e. Cd |Cd Ni Ni 8. Calculate AS for the dissociation of dinitrogen tetraoxi de at 25°C NOdg) 2NO:(g) AG, J/mol)AH, J/mol) Substance NO) NOdg) +33.2 +51.3 +97.9 +9.2 d. +0.076 kJ K a.-2.10 kJ/K e +2.10kJ/K b. -0.550 kJ/K c.-0.208 kJ/K 9. Use the standard...
please solve A to d to get thumps up. Question 11 5 pts Consider a galvanic...
please solve A to d to get thumps up.
Question 11 5 pts Consider a galvanic cell consisting of the following two redox couples: Sn2+ (aq, 0.010 M) + 2e --> Sn (s) E.-0.14 V Cst (aq, 0.010 M) + e --> Cs(s) E--2.92 V a. Write the equation for the half-reaction at the cathode Question 12 5 pts b. Write the equation for the half-reaction at the anode HTML Editor Question 13 6 pts c. Write a shorthand cell...
a) 4.9 x 10'M b)24x10 M c)5.8x 1010 M )1.2 x 10 M 19. Which one of the following compounds will have the lowest molar solubility in pur water? b) CuS, Ksp 1.27x103 d) ZnS, Ksp = 1.6 x 10-24 a...
a) 4.9 x 10'M b)24x10 M c)5.8x 1010 M )1.2 x 10 M 19. Which one of the following compounds will have the lowest molar solubility in pur water? b) CuS, Ksp 1.27x103 d) ZnS, Ksp = 1.6 x 10-24 a) PbS, Ksp 9.04 x 102 e) Al(OH)s, Ksp 3 x 1034 What is the molar solubility, i.e. [Fe , in a saturated aqueous solution of 20. Fe(OH)20) Fe(OH(s)Fe2+(aa) + 201H (ag), Ksp 4.87 x 101" a) 2.44 x 1017...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an amine e. no reaction c. an aldehyde Which of the following combinations will react spontaneously? A. 12 + Cu2+ B. Pb2+ + Ag C. Zn2+ + Mg D. Sn2+ + Ni2+ The general formula for a cycloalkane can be represented by which of the following? a. C,H, C. CH b. C.H2n+2 d. C.H21-2 In a certain reaction AH =-136 kJ and E, = 96...
Which compound contains both ionic and covalent bonds? NaCN b) Naci c) HCI d) e) SO,...
Which compound contains both ionic and covalent bonds? NaCN b) Naci c) HCI d) e) SO, CO2 13) The following equations represent the formation of compound MX. What is the oH for the electron affinity of X (8)? X: (8) ► 2x () AH = 60 kJ/mol M(s) → MB) AH = 22 kJ/mol M (8) ► M' (g) + e- AH = 118 kl/mol X (8) + e. → X (g) AH = ? M' (g) + x (8)...
8-10 8. Determine the reduction potential for H2O(l) in neutral water: [H"]= [OH = 10? (6...
8-10
8. Determine the reduction potential for H2O(l) in neutral water: [H"]= [OH = 10? (6 points) (P. = 1 atm) 9. A cobalt electrode is placed in 1.00 L of I M CO(NO3)2(aq) and a chromium electrode is placed in 1.00 L of IM Cr(NO3)3(aq). Electrodes are connected by a wire through a voltmeter and the solutions are connected by a salt bridge. (16 points) a. The reduction reaction will be: b. The oxidation reaction will be: c. The...
a) b) c) d) If the Kb of a weak acid is 2.9 10*, the K,...
a)
b)
c)
d)
If the Kb of a weak acid is 2.9 10*, the K, of its conjugate acid must be which of the following? 2.9.10 6.46 7.54 3.4 10- The hydronium ion concentration of a 0.50 mol/L solution of hydrocyanic acid, HCN(aq), is 1.4 x 10-5 mol/L. Use Weak Acid Info 16.1 to answer the following question. The Ka for hydrocyanic acid is: 3.9 x 10-10 1.4 x 10-5 5.0 x 10-2 6.2 x 10-10 An acetic acid-sodium...
29. A process has a AH° of 8.5 kJ/mol and a AS™ of 35.2 J/mol-K. What is AGº at 300 K for this process? A) -23.0 kJ/mol B) -2.06 kJ/mol C) +33.4 kJ/mol D) +1.24 kJ/mol cd2 (aq) + 2e Sn2 30. A spontaneous voltaic cell is based on the following two standard half-reactions: (aq) + 2e Cd (w) Eº red (Ca/Cd) = -0.40 V → Sn) Ered (Sn/Sn) = -0.14 V What is the standard cell potential, Ecell? A)...
29. A process has a AHⓇ of 8.5 kJ/mol and a AS of 35.2 J/mol-K. What is AG at 300 K for this process? A) -23.0 kJ/mol B) -2.06 kJ/mol C) +33.4 kJ/mol D) +1.24 kJ/mol Sn (aq) 30. A spontaneous voltaic cell is based on the following two standard half-reactions: ca" () + 2e Cd () Eº rod (Cd?/Cd) = -0.40 V + 2e → Sn (1) E® red (Sn 2/Sn) = -0.14 V What is the standard cell...
Q(33) A Lewis acid is? A) A proton donor. B) A proton acceptor. C) An electron pair donor. D) An electron pair acceptor. E) An anphoteric species. Q(34) A Brønsted-Lowry acid is? A) A proton donor. B) A proton acceptor. C) An electron pair donor. D) An electron pair acceptor. E) An anphoteric species. Q(35) What is the relationship between Ka and Kb for a conjugate acid base pair? A) Kw=Ka+Kb B) Kw=K.*Kb C) Kw=Ko-Kb. D) Kw=Ka/Kb. E) Kw=K? Q(36)...
please help, thanks!
7. What is the correct cell notation for the reaction below? Cd(aq)+Ni(s)-Cd(s)+ Ni(aq) a. Cd Cd| Ni | Ni d. Ni Cd I N | Ca b. Cd CdNi | Ni e. Cd |Cd Ni Ni 8. Calculate AS for the dissociation of dinitrogen tetraoxi de at 25°C NOdg) 2NO:(g) AG, J/mol)AH, J/mol) Substance NO) NOdg) +33.2 +51.3 +97.9 +9.2 d. +0.076 kJ K a.-2.10 kJ/K e +2.10kJ/K b. -0.550 kJ/K c.-0.208 kJ/K 9. Use the standard...
please solve A to d to get thumps up.
Question 11 5 pts Consider a galvanic cell consisting of the following two redox couples: Sn2+ (aq, 0.010 M) + 2e --> Sn (s) E.-0.14 V Cst (aq, 0.010 M) + e --> Cs(s) E--2.92 V a. Write the equation for the half-reaction at the cathode Question 12 5 pts b. Write the equation for the half-reaction at the anode HTML Editor Question 13 6 pts c. Write a shorthand cell...
a) 4.9 x 10'M b)24x10 M c)5.8x 1010 M )1.2 x 10 M 19. Which one of the following compounds will have the lowest molar solubility in pur water? b) CuS, Ksp 1.27x103 d) ZnS, Ksp = 1.6 x 10-24 a) PbS, Ksp 9.04 x 102 e) Al(OH)s, Ksp 3 x 1034 What is the molar solubility, i.e. [Fe , in a saturated aqueous solution of 20. Fe(OH)20) Fe(OH(s)Fe2+(aa) + 201H (ag), Ksp 4.87 x 101" a) 2.44 x 1017...
What results when a secondary alcohol is oxidized? a. a ketone d. an acid b. an amine e. no reaction c. an aldehyde Which of the following combinations will react spontaneously? A. 12 + Cu2+ B. Pb2+ + Ag C. Zn2+ + Mg D. Sn2+ + Ni2+ The general formula for a cycloalkane can be represented by which of the following? a. C,H, C. CH b. C.H2n+2 d. C.H21-2 In a certain reaction AH =-136 kJ and E, = 96...
Which compound contains both ionic and covalent bonds? NaCN b) Naci c) HCI d) e) SO, CO2 13) The following equations represent the formation of compound MX. What is the oH for the electron affinity of X (8)? X: (8) ► 2x () AH = 60 kJ/mol M(s) → MB) AH = 22 kJ/mol M (8) ► M' (g) + e- AH = 118 kl/mol X (8) + e. → X (g) AH = ? M' (g) + x (8)...
8-10
8. Determine the reduction potential for H2O(l) in neutral water: [H"]= [OH = 10? (6 points) (P. = 1 atm) 9. A cobalt electrode is placed in 1.00 L of I M CO(NO3)2(aq) and a chromium electrode is placed in 1.00 L of IM Cr(NO3)3(aq). Electrodes are connected by a wire through a voltmeter and the solutions are connected by a salt bridge. (16 points) a. The reduction reaction will be: b. The oxidation reaction will be: c. The...
a)
b)
c)
d)
If the Kb of a weak acid is 2.9 10*, the K, of its conjugate acid must be which of the following? 2.9.10 6.46 7.54 3.4 10- The hydronium ion concentration of a 0.50 mol/L solution of hydrocyanic acid, HCN(aq), is 1.4 x 10-5 mol/L. Use Weak Acid Info 16.1 to answer the following question. The Ka for hydrocyanic acid is: 3.9 x 10-10 1.4 x 10-5 5.0 x 10-2 6.2 x 10-10 An acetic acid-sodium...
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