EDTA cannot be used as a primary standard always. When can EDTA be used as a primary standard ? Give reason why EDTA is used in complexometric titrations
Q: If 200 ml of 0.01 M EDTA is added to 100 ml of 0.01 M Ni solution that is buffered at PH of 10.2,…
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Q: Explain the analogies between the titration of a metal with EDTA and the titration of a strong acid…
A: EDTA has four carboxyl groups and two amine groups that can acts as electron pair donors or Lewis…
Q: EDTA is one of the common reagents used in a complexometric titration. a. Can we use EDTA…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: A 2.559 g sample containing both Fe and V was dissolved under conditions that converted the elements…
A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…
Q: 50.00 mL of a solution containing both Ni* and Pb2* ions requires 46.32 mL of a 0.02041 M EDTA…
A: 1) Given: Volume of solution = 50.00 mL. Concentration of EDTA = 0.02041 M Volume of EDTA required…
Q: A 0.4567 g sample of a ruthenium containing ore was dissolved in acid, treated appropriately to…
A: Given - Mass of ore = 0.4567 g Volume of solution = 50.00 ml Absorbance of solution = 0.600 To find…
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A: Given : molarity of EDTA : 0.01441M Volume of EDTA = 10.19mL Total amount of EDTA or milimole of…
Q: . A 50.00 mL solution containing Ni2+ and Fe2+ was treated EDTA to bind all the metal ions. After…
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Q: 3. A 100 mL sample of hard water is titrated with 22.4 mL of the EDTA solution from problem 2. The…
A: Volume of hard water sample = 100mL
Q: A 30-mL portion of a solution containing Ca2+ and Mg2+ was titrated with 28.19 mL of 0.213 M EDTA at…
A: Complexometric titration with EDTA is used for the determination of metal ions line calsium and…
Q: A 25.0 mL aliquot of 0.0660 M EDTA was added to a 46.0 mL solution containing an unknown…
A: Total concentration of EDTA = 0.0660 M Volume of EDTA = 25 mL EDTA reacts with V3+ and Ga3+
Q: 50.0-mL sample containing Ni2+ was treated with 25.0 mL of 0.0500 M EDTA to complex all the Ni2+ and…
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Q: Why is a small amount of magnesium salt added to the EDTA solution used for the titration of calcium…
A: Why is a small amount of magnesium salt added to the EDTA solution used for the titration of calcium…
Q: 0.5 mg sample required 20.5 ml. EDTA for titration. The EDTA was standardized by titrating 25 ml. of…
A: The question is based on the concept of complexometric titration. we have to analyse the alumina…
Q: You wish to measure the iron content of the well water on the new property you are about to buy. You…
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Q: Elaborate the reason why EDTA is used in many complexometric titrations. How will you be able to…
A: complexometric titration (sometimes chelatometry) is a form of volumetric analysis in which the…
Q: 25.00 mL 0.01000 M Ni2+ is titrated with 0.01000 M EDTA in a solution buffered to pH 5.0. Given that…
A: EDTA, or ethylenediaminetetraacetic acid, is a popular chelating agent that’s used in food, as a…
Q: A 100, 0mL containing Zn^ 2+ was treated with 50.0 of 0.0500 M EDTA complex all the Zn^ 2+ and leave…
A: We have given that 100mL containing Zn2+ was treated with 50.0ml of 0.0500 M EDTA complex excess…
Q: A 50.0 mL sample containing Cd²+ and Mn²+ was treated with 60.9 mL of 0.0700 M EDTA. Titration of…
A: Volume of the sample = 50.0 mL…
Q: A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 48.2 mL of 0.0600 M EDTA. Titration of…
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Q: An EDTA solution was prepared by dissolving approximately 4 g of the disodium salt in approximately…
A: Given: The mass of MgCO3=0.7682 g molar mass of MgCO3 = 84.314 g/mol Let the volume of standard…
Q: 50.00 mL of a solution containing both Ni2* and Pb²+ ions requires 46.32 ml of a 0.02041 M EDTA…
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Q: Why is it necessary to buffer the solution to a pH between 10 and 12 during the complexometric…
A: In this question, the reason for the need of buffer the solution to a pH between 10 and 12 during…
Q: A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 65.1 mL of 0.0400 M EDTA. Titration of…
A: Volume of EDTA = 65.1 mL Initial Molarity of EDTA = 0.04 M Initial moles of EDTA- Moles = Molarity…
Q: A 10.0 mL sample containing Fe³⁺ and Cu²⁺ was diluted to 100.0 mL solution. A 20.0 ml aliquot…
A: In EDTA titration, a masking agent is defined as a reagent that prevents one of the analyte from…
Q: A volume of 50.00 ml of 0.01800 mol L-1 EDTA solution was added to a solution containing 0.02550 g…
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Q: A 0.2054 g sample of CaCO, (primary standard) is dissolved in hydrochloric acid and the solution is…
A: Ca2++EDTA →Cu2+EDTA2- complexation reaction* Primary standards, Moles of CaCO3 = 0.2054 gm100…
Q: Calculate pCd²+ at each of the given points in the titration of 50.00 mL of 0.0070 M Cd²+ with…
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Q: Explain these question
A: As per our guidelines, we are allowed to answer the first three subparts for you. Kindly repost the…
Q: 7. Explain why Mg-EDTA complex is added to the titration mixture in the determination of calcium…
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Q: In the analysis for total hardness, formation of Ca-EDTA complex in the presence of an…
A: We have to find equilibrium constant of a reaction based on given reactions.
Q: A 25.00-mL sample containing Fe3+ was treated with 10.00 mL of 0.036 7 M EDTA to complex all the…
A: In the question Following information given - Volume of Fe3+ Solution = 25 mL Volume of EDTA = 10 mL…
Q: A standard solution of EDTA (0.08 M) is being used to titrate 50 ml of a 0.04 M Ca 2+ solution.…
A: Q.1: Before the addition of EDTA solution, [Ca2+] = 0.04 M pCa2+ = - log[Ca2+] = - log(0.04) =…
Q: The cadmium and lead ions in a 50.00 mL sample required 40.09 mL of a 0.005000 M EDTA for titration.…
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Q: 4. The cadmium and lead ions in a 50.00 mL sample required 40.09 mL of a 0.005000 M EDTA for…
A: A 75.00 ml solution required 21.42 mL of EDTA after marking of Cd+2. The volume corresponds to Pb+2…
Q: Calculate pCd²+ at each of the given points in the titration of 60.00 mL of 0.0060 M Cd²+ with…
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Q: Why polydentate ligands are useful titrants compared to monodentate ligands in titration for metal…
A: To answer questions regarding complexometric titrations:
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A: Since the Fe3+ and SCN- reacts in 1:1, and the amount of SCN- is less than Fe3+, thus SCN- is the…
Q: A 1.3174-g sample containing the chloride salts of magnesium, mercury(II), and zinc was dissolved in…
A: 1.3174-g sample dissolved in 250 mL A 50.00 mL aliquot was treated with 10 mL as NH3/NH4Cl buffer at…
Q: Determinethe concentration of an EDTA solution given that a 20.00 mLsample of 0.02491M Zn2+was…
A: Dear Student EDTA is a complexometric ligand and is used in complexometric titrations. EDTA is a…
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Q: A 0.6006-g sample of Ni/Cu condenser tubing was dissolved in acid and diluted to 100 mL in a…
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Q: You wish to measure the iron content of the well water on the new property you are about to buy. You…
A: We will use :Dilution law M1·V1=M2·V2 where,· M1 and V1 = is the initial concentration &…
Q: A 25.0 mL aliquot of 0.0700 M EDTA was added to a 32.0 mL solution containing an unknown…
A: Interpretation - The original concentration of the V3+ solution is to be explained. Given…
Q: A water sample was tested for hardness. To titrate Ca2* and Mg2+, a 25.00-mL sample needed 7.39 ml…
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Q: 25.00 mL 0.01000 M Ni2+ is titrated with 0.01000 M EDTA in a solution buffered to pH 5.0. Given that…
A: Stability constant -it is an equilibrium constant of the formation of a complex in solution. If the…
Q: 25.00 mL 0.01000 M Ni2+ is titrated with 0.01000 M EDTA in a solution buffered to pH 5.0. Given that…
A: The stability constant is also known as the formation constant. It is the strength of the reactant…
Q: 10. A 50.0ml solution containing Ni2+ and Zn2+ was treated with 25.0 ml 0.0452M EDTA to bind all the…
A: The titration in which the formation of colored complex is used to determine the endpoint, are known…
Q: 25.00 mL 0.01000 M Ni2+ is titrated with 0.01000 M EDTA in a solution buffered to pH 5.0. Given…
A: In EDTA, ehtylenediaminetetraacetic acid, due to the presence of 4 carbonyl groups and 2 amine…
b. EDTA cannot be used as a primary standard always. When can EDTA be used as a primary
standard ? Give reason why EDTA is used in complexometric titrations.
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- A sample of brass weighing 0.257600 grams was dissolved in acid and was diIuted to 250mL. From the sample, 100mL aliquot was obtained and was titrated with 0.02542 M EDTA. 63.250 mL was the endpoint. Another 100mL aliquot with a compound that can mask Cu. It underwent titration with 0.02542 M EDTA and its endpoint is 18.15 mL. Question. Determine the number of moles of Cu and number of moles of Zn in the sample. Find the % composition of each (Cu and Zn) in brass.A 5.00 mL tap water sample was measured out with a volumetric pipette, and added to a 25 mL Erlenmeyer flask. It was then titrated with a 0.0100 M Na2EDTA.2H2O solution, and found to take 0.635 mL of the EDTA solution to reach the blue endpoint.Standard CaCO, is used to standardize the EDTA solution prior to titration. Suppose 0.385 g of CaCO, was dissolved and diluted to 250.0 ml. A 25.0 mL aliquot of this standard CaCO3 solution was then titrated to endpoint using 29.50 mL of the EDTA solution. Afterwards, the standardized EDTA solution was used to analyze the hardness of a 1000-ml water sample buffered at pH 10. The sample required 44.35 ml. of the EDTA solution to reach the endpoint. Determine the hardness of the sample in ppm CaCO3.
- Give information about the structure of EDTA and the titrations with EDTA (indicators used, determination of the end point, reactions during the titration).A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10, required 23.55 mL of 0.0250 M EDTA. A second 50.00 mL aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA solution. a. Calculate the total hardness of the water sample, express in ppm CaCO3A 5.00 mL tap water sample was measured out with a volumetric pipette, and added to a 25 mL Erlenmeyer flask. It was then titrated with a 0.0100 M Na2EDTA.2H2O solution, and found to take 0.635 mL of the EDTA solution to reach the blue endpoint. How many moles of the 0.0100 M Na2EDTA.2H2O were added in the titration reaction? Show calculation. How many moles of calcium ions were reacted? Show calculation.
- Chromel is an alloy composed of nickel, iron, and chromium. A 0.6418-g sample was dissolved and diluted to 250.0 mL. When a 50.00-mL aliquot of 0.05173 M EDTA was mixed with an equal volume of the diluted sample, all three ions were chelated, and a 5.27-mL back-titration with 0.06139 M copper(II) was required. The chromium in a second 50.0-mL aliquot was masked through the addition of hexamethylenetetramine; titration of the Fe and Ni required 35.81 mL of 0.05173 M EDTA. Iron and chromium were masked with pyrophosphate in a third 50.0-mL aliquot, and the nickel was titrated with 25.77 mL of the EDTA solution. Calculate the percentages of nickel, chromium, and iron in the alloy. Percentage of nickel = % Percentage of iron = Percentage of chromium = % %Elaborate the reason why EDTA is used in many complexometric titrations. How will you be able to improve its selectivity when it comes to analyzing specific metals?A 50.00 mL aliquot of standard CaCO3 (0.3834g CaCO3 per liter) consumed 42.35 mL of EDTA solution. The same EDTA standard solution was used for the titration of a 3.00 mL water sample. This required 30.56 mL of the titrant. Calculate the molar concentration of EDTA standard solution. What is the total hardness of water sample (then after solving explain how it come up to the final answer.)
- 3. A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10, required 23.55 mL of 0.0250 M EDTA. A second 50.00 mL aliquot, prepared with NaOH, was titrated with 14.53 mL of the same EDTA solution. Calculate the total hardness of the water sample, express in ppm CaCO3 Calculate the concentration of CaCO3 in the sample in ppm Calculate the concentration of MgCO3 in the sample in ppm а. b. С.Triplicate samples of NaOH was found to have concentrations of 0.1444 M (Trial 1), 0.1107 M (Trial 2), and 0.1160 M (Trial 3) upon standardization. a.) What is the appropriate primary standard and chemical indicator for this particular titration process? b.) If the volumes of NaOH used during the titration are 10.55 mL, 15.35 mL, and 14.50 mL for Trial 1, 2, and 3, respectively, what is the average weight ± SD of the primary standard?why Mg (II) must be added when EDTA is standardized using acalcium standard solution and Eriochrome Black T as indicator.