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mostly need help with 9, and 12
9. Consider the following reaction: 6Fe+2(aq) + Cr2072 (aq)...
18) Which of the following is an acid-base reaction? A) Fe(s) + 2 AgNO3(aq) - 2...
18) Which of the following is an acid-base reaction? A) Fe(s) + 2 AgNO3(aq) - 2 Ag(s) + Fe(NO3)2(aq) B) MgSO4(aq) + Ba(NO3)2(aq) -- Mg(NO3)2(aq) + Baso C) C(s) + O2(g) - CO2(g) (D) 2 HCIO 4(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(C1O4)2 E) None of the above are acid base reactions. 1 Determine the oxidation state of P in PO 33-. A-3 B) 0 C) +6
help with thes 12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which...
help with thes
12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which ions are the spectator ions? a. Ba2+ and SO42- b. Ba2+ and K+ c. Ba2+ and NO3 d. K+ and SO42- e. K+ and NO3 13 Which is the net ionic equation for the reaction which takes place when HCl(ag) is added to KOH(aq)? a. HCl(aq) + KOH(99) KCl(aq) + H2O(1) b. H(aq) + OH(aq) + H2O(1) c. HCl(aq) + OH(aq) + Cl(aq) +...
Consider the following half-reactions: Half-reaction E° (V) 12(s) + 2e - →21"(aq) 0.535V 2H+ (aq) +...
Consider the following half-reactions: Half-reaction E° (V) 12(s) + 2e - →21"(aq) 0.535V 2H+ (aq) + 2e - → H2(g) 0.000V Cr3+(aq) + 3e —— Cr(s) -0.740V The strongest oxidizing agent is: enter formula The weakest oxidizing agent is: The weakest reducing agent is: The strongest reducing agent is: Will 12(s) reduce Cr3+(aq) to Cr(s)? — Which species can be reduced by H2(g)? If none, leave box blank. Use the References to access important values if needed for this question....
21. Consider the following balanced redox reaction: 2Cr3+ (aq) + 7H2O(l) + 6Fe3+ (aq) + Cr20,2-(aq)...
21. Consider the following balanced redox reaction: 2Cr3+ (aq) + 7H2O(l) + 6Fe3+ (aq) + Cr20,2-(aq) + 14H+ (aq) + 6Fe2+ (aq) (a) (0.5 mark) What is the oxidation number of Cr in Cr20-2-? INSTRUCTIONS: Give your answer as a WHOLE NUMBER (i.e. 1, if positive or -1, if negative). * Tries 0/2 (b) (0.5 mark) What is the oxidizing agent in this reaction? Fe3+ Fe2+ H+ • Cr2O2- H2O O Cr3+ 13. (1 mark) Which statement is TRUE about...
Consider the following unbalanced reaction: 1035(aq) + (aq) + H+(aq) → 12(s) + H2O(1) The correctly...
Consider the following unbalanced reaction: 1035(aq) + (aq) + H+(aq) → 12(s) + H2O(1) The correctly balanced reduction half-reaction is: (A) 21+(aq) → 12(s) + 2e- (B) 2H+(aq) + 2e → H2O(1) (C) 103 (aq) + (aq) → 12(s) + 302-(aq) + 4e (D) 2103(aq) + 12H+(aq) + 10 → 12(s) + 6H2O(1) (E) 61-(aq) + 8H+(aq) + 2e → 312(s) + 4H2O(1)
2. Calculate the pH of the following solutions: (a) [H3O+] = 1.4 x 10-'M (b) [OH-]...
2. Calculate the pH of the following solutions: (a) [H3O+] = 1.4 x 10-'M (b) [OH-] = 3.5 x 10-2M (c) pOH = 10.5 3. What is the pH of a 0.10 M solution of HCIO4? (A strong acid) 4. Write the dissociation reaction and the corresponding K, expression for the following acids in water. (a) H3PO4 (b) C&H OH 5. Write the reaction and corresponding Ko expression for each of the following bases in water. (a) NH3 (b) PO4...
Question 9 of 33 Consider the following half-reactions: 12(s) + 2e → 2 (aq), E°(red) =...
Question 9 of 33 Consider the following half-reactions: 12(s) + 2e → 2 (aq), E°(red) = 0.54 V, Cd2(aq) + 2 e → Cd(s), E° (red) = -0.40 V. Will the electrochemical cell represented by | 12 || Cd2+ | Cd be galvanic or electrolytic under standard conditions? A) Galvanic B) Electrolytic C) Not enough information to search o i ne 9 101 A W 70% ^ a
8 The Following reaction is classified as: 2HCl(aq) + Ba(OH)2(aq) → BaCl(aq) + 2 H20(0) b)...
8 The Following reaction is classified as: 2HCl(aq) + Ba(OH)2(aq) → BaCl(aq) + 2 H20(0) b) precipitation reaction oxidation-reduction reaction d) acid-base neutralization reaction 9. c) single replacement What is the volume of 0.1220 M HNO, solution required to completely neutralize 17.50 ml of 0.1211M NAOH? Reaction is: HNO, (aq) + NaOH(aq) -NaNO, (aq) + H:0 (aq) a) 17.37 ml b) 16.31 ml. c) 15.39 ml. d) 17.84 mL 10. Which one of the following reactions is the reduction reaction?...
I just need help with #9 thanks! Use the following to answer questions 8-9: Consider three...
I
just need help with #9 thanks!
Use the following to answer questions 8-9: Consider three 1-L flasks at STP. Flask A contains NH, gas, flask C contains N, gas. I STP. Flask A contains NH, gas, flask B contains NO, gas, and flask 8. Which contains the largest number of molecules? A) flask A B) flask B C) flask C D) all are the same E) none 9. In which flask do the molecules have the highest average velocity?...
9) Which one of the following pairs cannot be mixed together to form a buffer solutions...
9) Which one of the following pairs cannot be mixed together to form a buffer solutions A) KOH, HNO2 B) H2S03. KHSO3 C) HONH2, HONH3CI D) NaCI, HCI E) RbOH, HF 10) The Henderson-Hasselbalch equation is acid) acid] A) pH- pKa log basel base] D) pH - pKaobase [acid 11) HA is a weak acid. Which equilibrium corresponds to the equilibrium constant Kp for A- A) A (aq) H30+ (aq) HA (aq) H20 0) B) HA (aq) + OH-(aq) 근...
18) Which of the following is an acid-base reaction? A) Fe(s) + 2 AgNO3(aq) - 2 Ag(s) + Fe(NO3)2(aq) B) MgSO4(aq) + Ba(NO3)2(aq) -- Mg(NO3)2(aq) + Baso C) C(s) + O2(g) - CO2(g) (D) 2 HCIO 4(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(C1O4)2 E) None of the above are acid base reactions. 1 Determine the oxidation state of P in PO 33-. A-3 B) 0 C) +6
help with thes
12. In the reaction, K2SO4(99) + Ba(NO3)2(aq) + BaSO4(s) + 2 KNO3(aq), which ions are the spectator ions? a. Ba2+ and SO42- b. Ba2+ and K+ c. Ba2+ and NO3 d. K+ and SO42- e. K+ and NO3 13 Which is the net ionic equation for the reaction which takes place when HCl(ag) is added to KOH(aq)? a. HCl(aq) + KOH(99) KCl(aq) + H2O(1) b. H(aq) + OH(aq) + H2O(1) c. HCl(aq) + OH(aq) + Cl(aq) +...
Consider the following half-reactions: Half-reaction E° (V) 12(s) + 2e - →21"(aq) 0.535V 2H+ (aq) + 2e - → H2(g) 0.000V Cr3+(aq) + 3e —— Cr(s) -0.740V The strongest oxidizing agent is: enter formula The weakest oxidizing agent is: The weakest reducing agent is: The strongest reducing agent is: Will 12(s) reduce Cr3+(aq) to Cr(s)? — Which species can be reduced by H2(g)? If none, leave box blank. Use the References to access important values if needed for this question....
21. Consider the following balanced redox reaction: 2Cr3+ (aq) + 7H2O(l) + 6Fe3+ (aq) + Cr20,2-(aq) + 14H+ (aq) + 6Fe2+ (aq) (a) (0.5 mark) What is the oxidation number of Cr in Cr20-2-? INSTRUCTIONS: Give your answer as a WHOLE NUMBER (i.e. 1, if positive or -1, if negative). * Tries 0/2 (b) (0.5 mark) What is the oxidizing agent in this reaction? Fe3+ Fe2+ H+ • Cr2O2- H2O O Cr3+ 13. (1 mark) Which statement is TRUE about...
Consider the following unbalanced reaction: 1035(aq) + (aq) + H+(aq) → 12(s) + H2O(1) The correctly balanced reduction half-reaction is: (A) 21+(aq) → 12(s) + 2e- (B) 2H+(aq) + 2e → H2O(1) (C) 103 (aq) + (aq) → 12(s) + 302-(aq) + 4e (D) 2103(aq) + 12H+(aq) + 10 → 12(s) + 6H2O(1) (E) 61-(aq) + 8H+(aq) + 2e → 312(s) + 4H2O(1)
2. Calculate the pH of the following solutions: (a) [H3O+] = 1.4 x 10-'M (b) [OH-] = 3.5 x 10-2M (c) pOH = 10.5 3. What is the pH of a 0.10 M solution of HCIO4? (A strong acid) 4. Write the dissociation reaction and the corresponding K, expression for the following acids in water. (a) H3PO4 (b) C&H OH 5. Write the reaction and corresponding Ko expression for each of the following bases in water. (a) NH3 (b) PO4...
Question 9 of 33 Consider the following half-reactions: 12(s) + 2e → 2 (aq), E°(red) = 0.54 V, Cd2(aq) + 2 e → Cd(s), E° (red) = -0.40 V. Will the electrochemical cell represented by | 12 || Cd2+ | Cd be galvanic or electrolytic under standard conditions? A) Galvanic B) Electrolytic C) Not enough information to search o i ne 9 101 A W 70% ^ a
8 The Following reaction is classified as: 2HCl(aq) + Ba(OH)2(aq) → BaCl(aq) + 2 H20(0) b) precipitation reaction oxidation-reduction reaction d) acid-base neutralization reaction 9. c) single replacement What is the volume of 0.1220 M HNO, solution required to completely neutralize 17.50 ml of 0.1211M NAOH? Reaction is: HNO, (aq) + NaOH(aq) -NaNO, (aq) + H:0 (aq) a) 17.37 ml b) 16.31 ml. c) 15.39 ml. d) 17.84 mL 10. Which one of the following reactions is the reduction reaction?...
I
just need help with #9 thanks!
Use the following to answer questions 8-9: Consider three 1-L flasks at STP. Flask A contains NH, gas, flask C contains N, gas. I STP. Flask A contains NH, gas, flask B contains NO, gas, and flask 8. Which contains the largest number of molecules? A) flask A B) flask B C) flask C D) all are the same E) none 9. In which flask do the molecules have the highest average velocity?...
9) Which one of the following pairs cannot be mixed together to form a buffer solutions A) KOH, HNO2 B) H2S03. KHSO3 C) HONH2, HONH3CI D) NaCI, HCI E) RbOH, HF 10) The Henderson-Hasselbalch equation is acid) acid] A) pH- pKa log basel base] D) pH - pKaobase [acid 11) HA is a weak acid. Which equilibrium corresponds to the equilibrium constant Kp for A- A) A (aq) H30+ (aq) HA (aq) H20 0) B) HA (aq) + OH-(aq) 근...
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