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Part XI 71. 2 Mn04. (aq) + 5C2042-(aq) + 16H+(aq) → 2 Mn2+ (aq) + 10CO2...
2. Given the following redox equation: 5 C2042 (aq) + 2MnO4 (aq) + 16H(aq) - 10...
2. Given the following redox equation: 5 C2042 (aq) + 2MnO4 (aq) + 16H(aq) - 10 CO2(g) + 2 Mn2+ (aq) + 8 H2O(0) If it takes 25.57 mL of 0.1468 M Na2CO,to titrate 35.45 mL of KMnO solution, what is the molarity of KMnO4?
7) (10 pts) In the titration of sodium oxalate with potassium permanganate, very pure sodjum oxalate (Na2C2O4, MM13...
7) (10 pts) In the titration of sodium oxalate with potassium permanganate, very pure sodjum oxalate (Na2C2O4, MM133.9985 g/mol) is used to find an accurate Molarity of a potassium permanganate (KMnO) solution. If 98.52 mg of sodium oxalate is dissolved in exactly 25.00 mL of solution at 25.0°C, 21.50 mL of KMnO solution is needed to achieve equivalence. What is the Molarity of the KMnO,? Sodium and potassium ions are spectators in this reaction. Constant normal Ts and Ps are...
A 1.0 L solution of 0.30 M in H3O+(aq) containing Mn2+(aq), Cd2+(aq), and Fe2+(aq), all at...
A 1.0 L solution of 0.30 M in H3O+(aq) containing Mn2+(aq), Cd2+(aq), and Fe2+(aq), all at 0.010 M, was saturated with H2S(g) at room temperature. Assume that the pH of the solution remains constant and that the [H2S]sat = 0.10 M. The Ksp for MnS9S) is 2.5 x 10-13 , Ksp for CdS(s) is 8.0 x 10 -27 and Ksp for FeS(s) is 6.3 x10-18 . For H2S:Ka1=1.3 x 10-7. Ka2=8.5 x 10-14. Calculate the equilibrium concentrations of Mn2+(aq),Cd2+(aq), and...
BACKGROUND: Synthesis of Potassium Iron (III) Oxalate Hydrate Salt The iron(II) ions from Fe(NH4)2(SO4)2•6H2O will be precipitated as iron(II) oxalate. Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s) The su...
BACKGROUND: Synthesis of Potassium Iron
(III) Oxalate Hydrate Salt
The iron(II) ions from
Fe(NH4)2(SO4)2•6H2O
will be precipitated as iron(II) oxalate.
Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s)
The supernatant liquid, containing the ammonium and sulfate
ions, as well as excess oxalate ions and oxalic acid will be
decanted and discarded. The solid will then be re-dissolved and the
iron(II) ions will be oxidized to iron(III) ions by reaction with
hydrogen peroxide.
2Fe^2+(aq) + H2O2(aq) --> 2Fe^3+(aq) +2 OH^ - (aq)
The...
Consider the unbalanced redox reaction: MnO−4(aq)+Zn(s)→Mn2+(aq)+Zn2+(aq) Balance the equation in acidic solution. Part B- Determine the...
Consider the unbalanced redox reaction: MnO−4(aq)+Zn(s)→Mn2+(aq)+Zn2+(aq) Balance the equation in acidic solution. Part B- Determine the volume of a 0.475 M KMnO4 solution required to completely react with 3.35 g of Zn.
Consider the unbalanced redox reaction occurring in acidic solution: MnO−4(aq)+Zn(s)→Mn2+(aq)+Zn2+(aq) Part A Balance the equation in...
Consider the unbalanced redox reaction occurring in acidic solution: MnO−4(aq)+Zn(s)→Mn2+(aq)+Zn2+(aq) Part A Balance the equation in acidic solution. Express your answer as a chemical equation. Identify all of the phases in your answer. Part B Determine the volume of a 0.200 M KMnO4 solution required to completely react with 2.40 g of Zn. Express your answer using three significant figures.
REVIEW&CHECK FOR SECTION 4-5 1. A 1.71-g sample of Ba(OH)2(s) was dissolved in water to give...
REVIEW&CHECK FOR SECTION 4-5 1. A 1.71-g sample of Ba(OH)2(s) was dissolved in water to give 250 mL of solution. What is the OH concentration in this solution? (a) 0.010 M (b) 0.040 M (c) 0.080 M (d) 0.10 M 2. You have a 100.-mL volumetric flask containing 0.050 M HCI. A 2.0-mL sample of this solution was diluted to 10.0 mL. What is the concentration of HCl in the dilute solution? (a) 0.10 M (b) 0.010 M (c) 1.0...
PELIS JL 4 ELL Prol. UTVU 95. A solution of sodium oxalate (Na-C0A) in acidic solution...
PELIS JL 4 ELL Prol. UTVU 95. A solution of sodium oxalate (Na-C0A) in acidic solution is titrated with a solution of po (KMnO4) according to the following balanced chemical equation: cidic solution is titrated with a solution of potassium permanganate da) + H2SO4(aq) + SNACO aa-2Mosodal + SHOXD) +10CO2(g) + Snaga SO4(aq) + 8H2O(l) +10CO2(g) + 3Na2SO4(aq) + K2SO4(a) 0203 M KMnO4 is required to titrate 0 119 e of Na co dissolved in 20.0 mL of solution a....
Question 4 1 3 Mn2+ (aq) + 2Al(s) + 3 Mn(s) + 2 A13+ (aq) For...
Question 4 1 3 Mn2+ (aq) + 2Al(s) + 3 Mn(s) + 2 A13+ (aq) For the balanced equation above, calculate Ecell if [Mn2+1= .05 M and [A13+) = 4 x 10-4M. A.-0.027 V B. +1.42 V C. +0.192 V D. +0.508 V E. -0.541 V. ОА OB Ос OD OE Question 5 1 pts How many grams of tin will plate out from an Sn2+ (aq) solution in an electrolytic cell when 4.13 mol e pass through the circuit?...
Help please??! Molarity of KMnO4 is 0.0100 M Determination of oxalate in Kufe.(0,0...0). Name AB A...
Help please??!
Molarity of KMnO4 is 0.0100 M
Determination of oxalate in Kufe.(0,0...0). Name AB A LOCAL Partner's Name MA R ENDALL Total mass of product synthesized in previous experiment (6) 1720 g Molarity of KMnO. (Record from the label on the container) Trial 1 Trial 2 Trial 2 0.105 1. Mass of sample taken for titration (g) 0.11 2. Initial burette reading (ml) 0 Final burette reading (ml) 20 33.4 22.2 4. Volume of KMnO, used (ml) 2.2 5....
2. Given the following redox equation: 5 C2042 (aq) + 2MnO4 (aq) + 16H(aq) - 10 CO2(g) + 2 Mn2+ (aq) + 8 H2O(0) If it takes 25.57 mL of 0.1468 M Na2CO,to titrate 35.45 mL of KMnO solution, what is the molarity of KMnO4?
7) (10 pts) In the titration of sodium oxalate with potassium permanganate, very pure sodjum oxalate (Na2C2O4, MM133.9985 g/mol) is used to find an accurate Molarity of a potassium permanganate (KMnO) solution. If 98.52 mg of sodium oxalate is dissolved in exactly 25.00 mL of solution at 25.0°C, 21.50 mL of KMnO solution is needed to achieve equivalence. What is the Molarity of the KMnO,? Sodium and potassium ions are spectators in this reaction. Constant normal Ts and Ps are...
BACKGROUND: Synthesis of Potassium Iron
(III) Oxalate Hydrate Salt
The iron(II) ions from
Fe(NH4)2(SO4)2•6H2O
will be precipitated as iron(II) oxalate.
Fe^2+(aq) + C2O4^2-(aq) --> FeC2O4 (s)
The supernatant liquid, containing the ammonium and sulfate
ions, as well as excess oxalate ions and oxalic acid will be
decanted and discarded. The solid will then be re-dissolved and the
iron(II) ions will be oxidized to iron(III) ions by reaction with
hydrogen peroxide.
2Fe^2+(aq) + H2O2(aq) --> 2Fe^3+(aq) +2 OH^ - (aq)
The...
REVIEW&CHECK FOR SECTION 4-5 1. A 1.71-g sample of Ba(OH)2(s) was dissolved in water to give 250 mL of solution. What is the OH concentration in this solution? (a) 0.010 M (b) 0.040 M (c) 0.080 M (d) 0.10 M 2. You have a 100.-mL volumetric flask containing 0.050 M HCI. A 2.0-mL sample of this solution was diluted to 10.0 mL. What is the concentration of HCl in the dilute solution? (a) 0.10 M (b) 0.010 M (c) 1.0...
PELIS JL 4 ELL Prol. UTVU 95. A solution of sodium oxalate (Na-C0A) in acidic solution is titrated with a solution of po (KMnO4) according to the following balanced chemical equation: cidic solution is titrated with a solution of potassium permanganate da) + H2SO4(aq) + SNACO aa-2Mosodal + SHOXD) +10CO2(g) + Snaga SO4(aq) + 8H2O(l) +10CO2(g) + 3Na2SO4(aq) + K2SO4(a) 0203 M KMnO4 is required to titrate 0 119 e of Na co dissolved in 20.0 mL of solution a....
Question 4 1 3 Mn2+ (aq) + 2Al(s) + 3 Mn(s) + 2 A13+ (aq) For the balanced equation above, calculate Ecell if [Mn2+1= .05 M and [A13+) = 4 x 10-4M. A.-0.027 V B. +1.42 V C. +0.192 V D. +0.508 V E. -0.541 V. ОА OB Ос OD OE Question 5 1 pts How many grams of tin will plate out from an Sn2+ (aq) solution in an electrolytic cell when 4.13 mol e pass through the circuit?...
Help please??!
Molarity of KMnO4 is 0.0100 M
Determination of oxalate in Kufe.(0,0...0). Name AB A LOCAL Partner's Name MA R ENDALL Total mass of product synthesized in previous experiment (6) 1720 g Molarity of KMnO. (Record from the label on the container) Trial 1 Trial 2 Trial 2 0.105 1. Mass of sample taken for titration (g) 0.11 2. Initial burette reading (ml) 0 Final burette reading (ml) 20 33.4 22.2 4. Volume of KMnO, used (ml) 2.2 5....
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