Give information about the structure of EDTA and the titrations with EDTA (indicators used, determination of the end point, reactions during the titration).
Q: Which of the following is not a feature that primary standard substances should have. A. must be of…
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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: A 25.00 mL aliquot of sample containing Hg in dilute nitric acid was treated with 10.00 ml of…
A: The question is based on concept of complexometric titrations. we are titrating mercuric solution…
Q: In the complexometric titration of Ca and EDTA, when can a quick addition of titrant to the analyte…
A: The titration of EDTA with the metal ions is lnown as complexometric titration.Because in this EDTA…
Q: Which are TRUE for the use of indicators with dichromate? Dichromate is orange and changes color to…
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Q: after dissolving in 50.0 ml of good water, the zinc in a 0.3232 gram sample of foot powder was…
A: The percentage of Zn can be calculated asThe weight of zinc = 0.3232 gramsMolar mass of Zn2P2O7 =…
Q: Which indicator is used in the complexometric titrations of zinc with EDTA? Define Hardness of…
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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: Calculate the concentration of Ni2+ in a solution that was prepared by mixing 40.00 mL of 0.0400M…
A: Given data: Volume of Ni2+ = 40 mL Concentration of Ni2+ = 0.04 M Volume of EDTA = 30 mL…
Q: To determine the concentration of an EDTA solution, the following magnesium(II) solution is…
A: metallic magnesium (m(Mg) = 0.5012 g) is dissolved in dilute sulfuric acid, the resulting solution…
Q: What should be color of your solution before the end point in the determination of magnesium using…
A: Befor the end point the solution should be a wine red color. Direct-titrate the solution with…
Q: Calculate the volume of 0.0864 M EDTA needed to titrate the Ca in a 1.028 g mineral specimen that is…
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Q: The titration of Zn+2 and EDTA is carried out in the same manner as the Mg+2-EDTA titration. In this…
A: It is explained as given below :
Q: Titration of the same sample solution of MgCl2 I. Volume at EP with 0.10 M EDTA as titrant II.…
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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: An EDTA solution was prepared by dissolving approximately 4 g of the disodium salt in approximately…
A: Given mass of MgCO3 = 0.07682 g Volume of water = 1 L Molar mass of MgCO3 = 84.31 g/mol
Q: 7. A solution contains 1.569 mg/mL of CoSO4(MM = 155.0 g/mol). Calculate the volume of 0.007840 M…
A: Given data, Q7) Concentration of CoSO4 = 1.569 mg/mL Molar mass of CoSO4 = 155.0 g/mol Concentration…
Q: As part of a geological team that studied a local cave, you brought with you a bunch of 1.00 g rock…
A: Cacite is also called as Calcium carbonate (CaCO3). Its abundance is very high and is referred as…
Q: Estimate the fractional composition of EDTA at pH=10.36.
A: The concentration of hydrogen ion, H+, in the solution of pH 10.36 is;…
Q: List four methods of detecting the end-point of an EDTA titration and explain each.
A: Titration is a method of analyzing an unknown sample with the help of a known sample using an…
Q: Write the involved chemical reactions for this: An EDTA solution was prepared by dissolving…
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Q: A solution was prepared by dissolving about 30.00m g of EDTA in approximately 1 L of water and…
A: The solution is given below -
Q: Write the Chemical Reaction between EDTA and a heavy metal such as Iron. How does EDTA chemically…
A: EDTA is ethylenediaminetetraacetic acid. It is a hexadentate ligand and also a flexidentate ligand.…
Q: etermin
A: The absolute technique in which mass can be used to find quantity needed to electrolyze the…
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: A deepwell water sample of 100 mL was titrated with 0.010 M EDTA at pH 12 and consumed 31 mL.…
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Q: A sample of pure CaCO3 weighing 0.3677g is dissolved in hydrochloric acid and the solution diluted…
A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…
Q: Why is EDTA an appropriate titrant for the determination of water hardness?
A: In total hardness analysis of water, EDTA is used as the source of quantifying the total hardness…
Q: An EDTA solution was prepared by dissolving approximately 3 grams of Na2H2Y•H2O in sufficient water…
A: Given: Volume of Mg2+ ions = 50.00 mL = 0.050 L Molar concentration of Mg2+ = 0.004517 M Volume of…
Q: 7. Explain why Mg-EDTA complex is added to the titration mixture in the determination of calcium…
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Q: why Mg (II) must be added when EDTA is standardized using a calcium standard solution and Eriochrome…
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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: Why magnesium chloride hexahydrate is added to an EDTA solution?
A: Magnesium chloride hexahydrate is adding to EDTA solution generally in determining hardness of…
Q: Chromel is an alloy composed of nickel, iron, and chromium. A 0.6392-g sample was dissolved and…
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Q: Considering the graph given, what is the most suitable pH for the titration of calcium with EDTA?
A: pH 10 buffer is used in EDTA titration because in EDTA Y4- is predominant, and we want Y4- to react…
Q: A 1.509-g samle of a Pb/Cd alloy was dissolved in acid and diluted to exactly 250.0 mL in a…
A: The explanation is given below-
Q: * EDTA is used for titration of -5
A: EDTA stands for ethylenediamine tetra acetic acid. It can acts as ligand i.e electron pair donar.…
Q: What will be the molar Y⁴⁻ concentration in a 0.0200 M EDTA solution at a pH of 9.00? (α=0.054)
A: given data 0.0200 M EDTA at a pH of 9.00 (α=0.054) find molar Y⁴⁻ concentration
Q: Titration of 25.0 mL of a 0.0500 M Zn2+ solution with 0.0550 M EDTA in a solution buffered at pH 8.…
A: Calculation of the concentration of Zn2+ before addition of the titrant: Calculation of no. of…
Q: A.No.2: Briefly discuss with flow diagram ,the manufacturing process of any one of the acidic…
A: The substance that can exhibit intense resistance to the variation of the temperature, the pressure…
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: one of the following is not true about EDTA a. it is considered an acidic compound b. It has a…
A: We have to give the statement which is not true for EDTA.
Q: The concentration of a solution of EDTA was determined by standardizing against a solution of Ca2+…
A: EDTA forms 1:1 complex with Ca2+ ions.
Q: How to prepare 1L of 0.5mM PBS buffer at pH 7 using sodium phisphate monobasic, sodium phosphate…
A: A buffer solution is a solution which resist a change in its pH on the addition of small amount of…
Q: Calculate pMn² when 50.00 mL of 0,100 0 M Mn² is titrated with 25.00 mL of 0.200 0 M EDTA. The…
A: Given: 50.00 mL of 0.1000 M Mn2+ is titrated with 25.00 mL of 0.2000 M EDTA Kf = 7.76 × 1013 α =…
Q: At pH 7, what metal ions can be titrated by EDTA?
A: In complexometric titrations, EDTA requires a certain minimum pH for titrating each metal ion. The…
Q: How can you explain titrating with EDTA metals and how the molecules can bond?
A: EDTA (Ethylenediaminetetraacetic acid) EDTA is very good titrant used for quantitative estimation of…
Q: Calculate the percentage of nickel, chromium and iron in the alloy.
A: We are provided with: Weight of the sample containing Volume of the Concentration of A back…
Q: 0.8153 g of a sample containing Pb(NO3)2 was taken, dissolved in water, and 40.20 mL of 0.06 M EDTA…
A: The question is based on the concept of complexometric titrations. we have to calculate mass…
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- Calcium in powdered milk is determined by dry ashing a 1.50-g sample and then titrating the calcium with EDTA solution; 12.1 mL is required. The EDTA was standardized by titrating 10.0 mL of a zinc solution prepared by dissolving 0.632 g zinc metal in acid and diluting it to 1 L (10.8 mL EDTA required for titration). What is the concentration of calcium in the powdered milk in parts per million? is the correct answer 2.89 ppm?Calcium in powdered milk is determined by dry ashing a 1.50-g sample and then titrating the calcium with EDTA solution; 12.1 mL is required. The EDTA was standardized by titrating 10.0 mL of a zinc solution prepared by dissolving 0.632 g zinc metal in acid and diluting it to 1 L (10.8 mL EDTA required for titration). What is the concentration of calcium in the powdered milk in parts per million?How can you explain titrating with EDTA metals and how the molecules can bond?
- 0.7682 g MgCO3 is dissolved in 1000 mL of water, 50 mL of this solution is taken and titrated with EDTA. In titration, calculate the molar concentration of EDTA since 42.35 mL of EDTA is spent. (MgCO3: 84 g/mol).An EDTA solution was prepared by dissolving approximately 3 grams of Na2H2Y•H2O in sufficient water to give 1 liter of solution. This solution was then standardized against 50.00 mL aliquots of 0.004517 molar Mg2+. An average titration volume of 32.22 mL was required. Determine the molar concentration of EDTA.The Zn in a 0.7556-g sample of foot powder was titrated with 21.27 mL of 0.01645 M EDTA. Calculate the percentage of Zn in this sample. A silver nitrate solution contains 14.77 g of primary-standard grade AgNO3 in 1.00 L. What volume of this solution will be needed to react with 0.2631 g of NaCl.
- A chemist is given a piece of limestone and told that 50.00% of the sample exists as calcium oxide (CaO). To analyze the sample, the chemist wants to dissolve a portion of the sample in 100 mL and then titrate an aliquot (10 mL) using 0.005300 M EDTA. How much sample (in grams) is needed if a titration volume of 25.00 mL EDTA is desired?0.0322 M EDTA solution is used as the titrant in the titration of a 50.00 mL solution that is 0.0129 M in Cu2+. The solution is held at pH = 10.00 by a buffer that is 0.050 in ammonia (NH3). At what volume (in mL) of EDTA added will the equivalence point be reached?4. Calcium in powdered milk was determined by ashing a 1.500g sample and then titrating the calcium with EDTA solution. The volume of EDTA necessary for the titration was 12.09 mL. The EDTA was standardized by titrating 10.00 mL of a zinc solution prepared by digesting 0.6322 g of zinc metal in acid and diluting to 1.000 L. The volume of EDTA necessary for the standardization was 10.79 mL. What is the concentration of calcium in parts per million?
- 0.4545 g CaCO3 was dissolved in HCl and the resulting solution was diluted to 0.25 L. Twenty-five mL aliquot of this solution required 35.2 mL of EDTA upon performing titrimetric analysis. Determine the molarity of EDTAA solution was prepared by dissolving about 3.0 g of NaH2Y2·2H2O in approximately 1 L of water and standardizing it against 50.00-mL aliquots of 0.004423 M Mg2+. An average titration of 30.27 mL was required. Calculate the molar concentration of the EDTA.Calculate the volume of 0.0500 M EDTA needed to titrate the Ca in 0.1973 g of CaCO3