Why are Ce4+solutions never used for the titration of reductants in basic solutions?

Q: Saturated Ag/AgCl reference || Ti³+ (0.0850 M), Ti²+ (0.0450 M) || Pt

A: given E Ag/Agcl = 0.199v E; Ti+3/Ti+2 =-0.369V Ti+3=0.0850M Ti+2=0.0450M find Ecell

Q: What is the solubility of Cr(OH)₃ at a pH of 11.70? (Ksp Cr(OH)₃ is 6.70 × 10⁻³¹)

A: pH = 11.70  pOH = 14 - pH = 14 - 11.70 = 2.30 Therefore, - log [OH-] = 2.30  [OH-] = antilog (- 2.30…

Q: Write a cell diagram, OHR and RHR for the reaction below. 2AI(s) + 3Cu2*(1 M) → 3 Cu(s) + 2AI3*(1 M)

A:

Q: 7. Define back-titration. What is the concept behind this method?

A:

Q: 50.00 mL of a solution containing iron (II) and iron (III) when titrated at pH2.0, 12.50 mL 0.01200…

A: Answer is explained below.  From the given plot it is clear that at ph = 2.0, only Fe3+ reacts with…

Q: What is the pH of a 50 cm3 buffer solution if it is contains 0.0100 mol/dm3 sodium acetate and…

A: Acids are categorized as strong acids and weak acids based on the degree of dissociation it…

Q: a) Cr.0,2- + Fe* → Fe3* + Cr3+ (in acidic solution) b) Mn* + BiO3 → MnOq¯ + Bi³* (in acidic…

A: a) Cr2O72-+Fe2+→Fe3++Cr3+ The oxidation state of Cr is +6. b) Mn2++BiO3-→MnO4-+Bi3+ The oxidation…

Q: will H3N titrate with 1.0M Ba(OH)2?

A: For any titration to be possible, one components needs to be acid and the other needs to be the base…

Q: Calculate the volume of 0.0477 M EDTA needed to titrate the Ca in a 0.1715 g CaCO, (MM = 100.0869…

A: Ca2+ forms a 1:1 complex with EDTA  Zn2+ also forms a 1:1 complex with EDTA  So, 1 mole of Ca2+ or 1…

Q: When excess solid Mg(OH)2 is shaken with 1.00 L of 1.0 M NH,Cl solution, the resulting saturated…

A: Given data contains, Volume of NH4Cl is 1.00 L. Molarity of NH4Cl is 1.0 M. The pH of the solution…

Q: The formation constant for [Cu(CN)2]- is 1.0 x 1016, what is the value of the dissociation constant…

A: Formation Constant It is also know as stability constant of a complex in a solution. It describes…

Q: A buffer solution is made that is 0.392 M in HClO and 0.392 M in NaClO . (1) If Ka for HClO is…

A: The pH of the solution can be determined by using Henderson Hasselbalch equation: Given data is:…

Q: What is the minimum pH at which Cd(OH)2(s) will precipitate from a solution that is 0.0055M in…

A: For calculate pH , firstly concentration of OH calculate

Q: Why is 0,200 M Fe(NO3)3 in 0,1 M in HNO3 used as a blank solution instead of water, which has 0…

A: Given: Concentration of Fe(NO3)3=0.200 M Concentration of HNO3=0.1 M

Q: 4) Calculate the mass of potassium hydrogen diodate required to cause an endpoint at ca 25,0 ml when…

A: Given that -  Volume of Na2S2O3 Solution = 25.0 mL  Concentration Molarity of Na2S2O3 Solution =…

Q: 1. The formation constant for the lead(II)-EDTA chelate, PbY2, is 1.10 x 1018. Calculate the…

A: The expression for calculating the conditional formation constant is as follows,…

Q: 23 The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M…

A: The titration of 25.0 mL of an unknown concentration sulfuric acid solution requires 83.6 mL of 0.12…

Q: 1. A solution contains 1.238 mg of CoSO4 (155.0 g/ mol) per milliliter. Calculate  the volume of…

A: Here we are required to find the molar concentration of EDTA.

Q: Using the graph given, which metal can be titrated better with EDTA and why? Fe3+ Fe2+ Ca2+ Hg2+

A: This is a method of quantitative estimation of concentration of unknown solution by titrating it…

Q: 0.683 grams of iron mineral dissolves with acid. Fe2+ ​​is titrated with Ce(SO4)2. Calculate the…

A: Percentage can be calculated by finding the mass of Iron present in the solution.  From titatration…

Q: What is the solubility of Cr(OH)₃ at a pH of 10.20? (Ksp Cr(OH)₃ is 6.70 × 10⁻³¹)

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Q: Calculate the solubility of Ni(OH) 2 in a solution buffered at pH = 8.75 (K sp = 1.6 x 10 -16 ).

A:

Q: In trilonometric (“complexonometric") titration as a titrant is used: EDTA solution Hg(NO3)2…

A:

Q: We titrate 25.0 cm3 of 0.012 M K4[Fe(CN)6] solution with 0.020 M K3[Fe(CN)6] solution. What will be…

A: Fe is present in its +2 oxidation state in K4[Fe(CN)6], (which is the reduced form) and is present…

Q: What is the pH of a buffer made by dissolving .762 g of HCHO2 and .212 of KCHO2in 1.0 L of solution?…

A: Here the buffer solution is made with weak acid, HCHO2, and its conjugate base KCHO2 in a 1L…

Q: The Zn in a 260-g sample of foot powder was titrated with 2 L of 0.5 M EDTA. Calculate the percent…

A: Given that -  Mass of Sample of Zn = 260 g  Volume of EDTA Solution = 2 L  Molarity of EDTA Solution…

Q: Calculate the solubility (in moles per liter) of Fe(OH)3 (Ksp = 4 x 10-38) in each of the following.…

A: Answer:- This question is answered by using the simple concept of calculation of molar solubility in…

Q: Find the concentration of free Mg21 at pH 9.00 in 0.050 M Na2[Mg(EDTA)].

A:

Q: Calculate the equilibrium concentration of Cu2+ in a solution initially with 0.050 M Cu2+ and 1.00 M…

A: The value of the reaction quotient at the chemical equilibrium constant is equilibrium. There must…

Q: Which indicator is used for copper analysis in oxidation reduction titrations? A. KMnO4 B. Starch…

A: Indicator used for copper analysis in oxidation reduction titration is

Q: 10 Calculate the pH at the equivalence point when 0.104 g sodium acetate (MM-82.0,Kb-5.6x10-¹0) Is…

A: #10.(a): The balanced equation for the reaction of sodium acetate, NaCH3COO(aq) and HCl(aq) is:…

Q: Explain why K2CrO4 is used as an indicator in Argentometric titration

A: Argentometric titration is the titration method, which is used for the detection of halides or…

Q: 1. How many ml of 0.30M solution of H2SO4 will react with 20ml of a 0.30M solution of NaOH?…

A: Given values: n1 = 2           M1= 0.30M V1 = ? n2= 1 V2= 20ml M2= 0.30M n1, M1 and V1 are the…

Q: Given that the formation constant for Ca^2+ i2 10^10.65 and aY^4- =0.30 at a pH of 10.00. 1.How…

A: The question is based on the concept of complexometric titrations. we have to explain the impact of…

Q: Problem attached

A: During titration, a titration curve is a graphical representation of the pH of a solution. A…

Q: Titration of I 2 produced from 0.1500 g of primary-standard-grade KIO 3 required 42.30 mL of sodium…

A: Answer is explained below.  Ans: The concentration of the Na2S2O3 is 0.099 M.

Q: pls ans. asap The titration reaction:  2Ce4+ + 3I-  ⇌  2Ce3+  +  I3-  is an example of: a.…

A: In iodometric titration , Iodide ion is reacted with oxidizing agent

Q: Calculate the volume of 0.0500 M EDTA needed to titrate the Ca in 0.1973 g of CaCO3

A:

Q: Fe3+ + OH- FEOH²+ + OH- Fe(OH)2* + OH- Fe(OH)3(ferihydrite) + OH- Fe(OH)4

A: pH is the negative logarithm of the hydrogen ion concentration. It is a measure of acidity or…

Q: What is the primary use of standard K2Cr2O7 solutions?

A: Potassium dichromate (K2Cr2O7) is primarily used for volumetric analysis to determine the weight of…

Q: Calculate the concentration of ions in the following saturated solutions: (a) [I- ] in AgI solution…

A: The solubility product constant expresses the dissolution of a solute in an aqueous solution. When…

Q: A) Explain the following: 1. Zn2+ has sharper equivalence point than Mg²+ in EDTA titrations. 2.…

A: PART A Answer 1:  The equivalence point is the point wherein the analyte has entirely reacted with…

Q: Calculate the formation constant of the 2+ Ni(CN)4* complex at 25°C.

A: A stability constant (formation constant, binding constant) is an equilibrium constant for the…

Q: In the preparation of the titrant, the solution must be aged for at least 24 hours in the dark.…

A:

Q: 0.316 grams of a sample containing chloride is taken and treated with an excess of 48.5 mL of 0.11 M…

A: Here we are required to find the percentage of chloride present in the sample

Q: What should be the minimum pH in order to extract Al(oH)3 from 0.01M Alcl3 solution? pKç Al(oH)3=33

A: Given data, Concentration of AlCl3 = 0.01M pKc of Al(OH)3 = 33

Q: What are the equilibrium concentrations of Pb2+ and F– in a saturated solution of lead(II) fluoride…

A:

Q: The equilibrium concentration of chromate ion in a saturated lead chromate solution in M  and The…

A: The compounds given are lead chromate i.e. PbCrO4 and silver sulfide i.e. Ag2S.

Q: 6.30 g sample containing tellerium is dissolved and 47 mL of 0.03 M K2Cr2O7 is added. After the…

A: The balanced equations are     3 TeO2 + Cr2O72–   + 8 H+ → 3 H2TeO4 + 2 Cr3+ + H2O   Cr2O72– + 6…