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Question 31 4 pts 31. Determine which is reduced agent? MnO4 (aq) +5Fe2(aq) + 8 H(aq)...
iz Instructions this file before answering the questions: periodic table 1.docx.pdf = log(R/S) 7 pts Question...
iz Instructions this file before answering the questions: periodic table 1.docx.pdf = log(R/S) 7 pts Question 30 30. Calculate pH of 0.100 M HNO2(aq). K = 2.8 x 10-5 9.01 2.78 6.21 5.21 Open this file before answering the questions: periodic table1.docx.pdf ! (0.5)) = log(R/S) 5 pts Question 33 33. A radioactive element X has the half life of 2 weeks. Calculate the remained amounts of the element X after 18 days if the initial amounts is 18 mg....
1. (4p) In an acidic aqueous solution, Fe2+ ions are oxidized to Fe3+ ions by MnO4": 5Fe2+(aq) + MnO4 (aq) + 8H(aq) → 5...
1. (4p) In an acidic aqueous solution, Fe2+ ions are oxidized to Fe3+ ions by MnO4": 5Fe2+(aq) + MnO4 (aq) + 8H(aq) → 5Fe3+ (aq) + Mn2(aq) + 4H2O(1) In part A of the experiment, suppose that 1.067 g of Fe(NH4)2(SO4)2.6H2O(s) are placed in a 250 ml Erlenmeyer flask to which 20 mL of water and 8 mL of 3 M H2SO4(aq) are added. The solution was titrated to the end point by adding 26.89 mL of KMnO4(aq) from the...
Question 8 Given the half-reactions and E values below, determine which species is the best reducing...
Question 8 Given the half-reactions and E values below, determine which species is the best reducing agent. MnO4 (aq) + SH+ (aq) +56 - Mn2+(aq) + 4H2O(1) E = +1.512 V 4H" (aq) +NO; (aq) + 3e - NO(g) + 2H20() E = +0.964 V Fe-(aq) + - Fe2+(5) E =+0.771 v 2H+(aq) + 2€ - H2(g) Eºr=0.000 V Он O H2 MnO4 NO, Fea-
You have 45 minutes. Question 3 5 pts For the following equation: MnO4 (aq) + SO4?...
You have 45 minutes. Question 3 5 pts For the following equation: MnO4 (aq) + SO4? (aq) + H+ (aq) --> Mn2*(aq) + S032 (aq) +H20, Identify the reductant(s). 5 Online SO3 la ng of MnO4 (a) SO? la H20 none of these Hlac Mn?
Write the half-reactions and the net ionic equations for these complete redox reactions 4 2NaCl (aq) + Br: (I) Cl:...
Write the half-reactions and the net ionic equations for these complete redox reactions 4 2NaCl (aq) + Br: (I) Cl: (g)2NaBr (aq) a) Oxidation half-reaction: Reduction half-reaction: CrCls (aq)+ Au (s) AuCl3(aq) Cr (s) - b) Oxidation half-reaction: Reduction half-reaction: Identify the oxidizing agent and the reducing agent in these complete redox reactions: 5. 5SO2-2Mn2+ 5so +3H2O a) 2MnO, +6H A) MnO B) So2 C) Mn2 D) SO E) H Oxidizing agent: b) 5Fe2 (aq) + MnO4 (ag) +8H'(aq)-5Fe (ag)+...
please answer all of the questions!! 1. Which substance is reduced in the following reaction (1...
please answer all of the questions!!
1. Which substance is reduced in the following reaction (1 point): 2Al(s) + 3C12(g) → 2AlCl3(s) a. Al b. Cl2 c. AICI: d. None 2. Which substance is the reducing agent in the following reaction (1 point): 8H+ (aq) + MnO4 (aq) + 5Fe2+ (aq) → 5Fe3+ (aq) + Mn2+ (aq) + 4H2O(1) a. Fe2+ b. Mn04 c. H+ d. H20 3. Which substance is oxidized in the following reaction (1 point): Fes(s) +...
Question 6 6 pts (Q4) What is the stoichiometric coefficient of MnO4 (aq) when the following...
Question 6 6 pts (Q4) What is the stoichiometric coefficient of MnO4 (aq) when the following equation is balanced in acidic condition? MnO4" (aq) + Fe (s) → Mn2+ (aq) + Fe 3+ (aq) 1 5 3 24 12
4) how many moles of MnO4- are requiered to reach the endpoint in this titration? a)0.002706...
4)
how many moles of MnO4- are requiered to reach the endpoint in this
titration?
a)0.002706 moles
b)312.2moles
c)0.01353 moles
d)0.06764 moles
In a flask, 2.055 g of FeSO4 is placed in a 250 Erlenmeyer flask to which 75 m 5 mL of 3 M sulfuric acid has been added. The molar mass of FeSO4 is 15199 reaction is shown below: Balanced equation: 5Fe (aq) + MnO4 (a + 8H - 5Fe(n) + Mn() * * Which species is oxidized...
A Question Completion Status: 8 10 2+ +1.51 V Exhibit 17-1 Use this list of half-reactions...
A Question Completion Status: 8 10 2+ +1.51 V Exhibit 17-1 Use this list of half-reactions to answer the following question(s) MnO4 (aq) + 8H+ (aq) + 5e → Mn2+ (aq) + 4H2O(1) Cr20-2 (aq) + 6e → 2013+(aq) + 7H201) Cu- (aq) + 2e → Cu(s) Pb (aq) + 2e Pb(s) Fe2(aq) + 2e → Fe(s) A13+ (aq) + 3e → Al(s) +1.33 V +0.34 V -0.13 V -0.44V -1.66 V Refer to Exhibit 17-1. The strongest reducing agent...
given this electrochemical cell: Concentration of H+ is unknown, Pressure of H2 is constant at 1...
given this electrochemical cell:
Concentration of H+ is unknown, Pressure of H2 is constant at 1
atm. Initial cell voltage is 0.139V, with the Pt | H2 | H+
half-cell acting as the cathode.
a) write out the oxidization and reduction half reactions, and
the overall chemical reaction occurring, and find the initial pH in
the H+ | H2 | Pt cell
b) What is the equilibrium constant of the reaction happening in
the cell?
Tl(s) | Tl*(aq, 0.50 mol...
iz Instructions this file before answering the questions: periodic table 1.docx.pdf = log(R/S) 7 pts Question 30 30. Calculate pH of 0.100 M HNO2(aq). K = 2.8 x 10-5 9.01 2.78 6.21 5.21 Open this file before answering the questions: periodic table1.docx.pdf ! (0.5)) = log(R/S) 5 pts Question 33 33. A radioactive element X has the half life of 2 weeks. Calculate the remained amounts of the element X after 18 days if the initial amounts is 18 mg....
1. (4p) In an acidic aqueous solution, Fe2+ ions are oxidized to Fe3+ ions by MnO4": 5Fe2+(aq) + MnO4 (aq) + 8H(aq) → 5Fe3+ (aq) + Mn2(aq) + 4H2O(1) In part A of the experiment, suppose that 1.067 g of Fe(NH4)2(SO4)2.6H2O(s) are placed in a 250 ml Erlenmeyer flask to which 20 mL of water and 8 mL of 3 M H2SO4(aq) are added. The solution was titrated to the end point by adding 26.89 mL of KMnO4(aq) from the...
Question 8 Given the half-reactions and E values below, determine which species is the best reducing agent. MnO4 (aq) + SH+ (aq) +56 - Mn2+(aq) + 4H2O(1) E = +1.512 V 4H" (aq) +NO; (aq) + 3e - NO(g) + 2H20() E = +0.964 V Fe-(aq) + - Fe2+(5) E =+0.771 v 2H+(aq) + 2€ - H2(g) Eºr=0.000 V Он O H2 MnO4 NO, Fea-
You have 45 minutes. Question 3 5 pts For the following equation: MnO4 (aq) + SO4? (aq) + H+ (aq) --> Mn2*(aq) + S032 (aq) +H20, Identify the reductant(s). 5 Online SO3 la ng of MnO4 (a) SO? la H20 none of these Hlac Mn?
Write the half-reactions and the net ionic equations for these complete redox reactions 4 2NaCl (aq) + Br: (I) Cl: (g)2NaBr (aq) a) Oxidation half-reaction: Reduction half-reaction: CrCls (aq)+ Au (s) AuCl3(aq) Cr (s) - b) Oxidation half-reaction: Reduction half-reaction: Identify the oxidizing agent and the reducing agent in these complete redox reactions: 5. 5SO2-2Mn2+ 5so +3H2O a) 2MnO, +6H A) MnO B) So2 C) Mn2 D) SO E) H Oxidizing agent: b) 5Fe2 (aq) + MnO4 (ag) +8H'(aq)-5Fe (ag)+...
please answer all of the questions!!
1. Which substance is reduced in the following reaction (1 point): 2Al(s) + 3C12(g) → 2AlCl3(s) a. Al b. Cl2 c. AICI: d. None 2. Which substance is the reducing agent in the following reaction (1 point): 8H+ (aq) + MnO4 (aq) + 5Fe2+ (aq) → 5Fe3+ (aq) + Mn2+ (aq) + 4H2O(1) a. Fe2+ b. Mn04 c. H+ d. H20 3. Which substance is oxidized in the following reaction (1 point): Fes(s) +...
Question 6 6 pts (Q4) What is the stoichiometric coefficient of MnO4 (aq) when the following equation is balanced in acidic condition? MnO4" (aq) + Fe (s) → Mn2+ (aq) + Fe 3+ (aq) 1 5 3 24 12
4)
how many moles of MnO4- are requiered to reach the endpoint in this
titration?
a)0.002706 moles
b)312.2moles
c)0.01353 moles
d)0.06764 moles
In a flask, 2.055 g of FeSO4 is placed in a 250 Erlenmeyer flask to which 75 m 5 mL of 3 M sulfuric acid has been added. The molar mass of FeSO4 is 15199 reaction is shown below: Balanced equation: 5Fe (aq) + MnO4 (a + 8H - 5Fe(n) + Mn() * * Which species is oxidized...
A Question Completion Status: 8 10 2+ +1.51 V Exhibit 17-1 Use this list of half-reactions to answer the following question(s) MnO4 (aq) + 8H+ (aq) + 5e → Mn2+ (aq) + 4H2O(1) Cr20-2 (aq) + 6e → 2013+(aq) + 7H201) Cu- (aq) + 2e → Cu(s) Pb (aq) + 2e Pb(s) Fe2(aq) + 2e → Fe(s) A13+ (aq) + 3e → Al(s) +1.33 V +0.34 V -0.13 V -0.44V -1.66 V Refer to Exhibit 17-1. The strongest reducing agent...
given this electrochemical cell:
Concentration of H+ is unknown, Pressure of H2 is constant at 1
atm. Initial cell voltage is 0.139V, with the Pt | H2 | H+
half-cell acting as the cathode.
a) write out the oxidization and reduction half reactions, and
the overall chemical reaction occurring, and find the initial pH in
the H+ | H2 | Pt cell
b) What is the equilibrium constant of the reaction happening in
the cell?
Tl(s) | Tl*(aq, 0.50 mol...
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