Q: A 0.7352g sample of ore containing Fe3+, Al3+ and Sr2+ was dissolved and made up to 500.00 mL. The…
A: Given: mass of ore = 0.7352 g Concentration of EDTA = 0.02145 mol/L At pH = 1.0, the volume of EDTA…
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: 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: Compare the two quantities based on the given condition: At the equivalence point in the titration…
A: At the equivalence point, all of the Ca2+(aq) is converted to CaY2-(aq).
Q: . A 50.00 mL solution containing Ni2+ and Fe2+ was treated EDTA to bind all the metal ions. After…
A:
Q: An unknown Ca solution was prepared by weighing a 2.122 g sample, dissolving it in HCI and then…
A:
Q: Would tris(2,29-bipyridine)iron be a useful indicator for the titration of Sn21 in 1 M HCl with…
A:
Q: Iron(III) is best determined by addition of excess EDTA, followed by back-titration with a metal ion…
A: Fe3+ + EDTA4- => Fe(EDTA)-Cu2+ + EDTA4- => Cu(EDTA)2-Total moles of EDTA = volume x…
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: A 60.00 mL of buffered solution (pH 10) containing Zn2* and Ni2* ions (from a chip sample) is…
A: Metal ion combine with EDTA in 1 : 1 mole ratio. So we would calculate moles of both metal ions…
Q: An unknown Ca solution was prepared by weighing a 2.122 g sample, dissolving it in HCl and then…
A:
Q: 20. Assume you are using 0.1 M EDTA to titrate a 0.2 M Ca* solution (25 mL) at pH 10.0. V molarity…
A: Calculation of no. of mol of Ca2+: n=Molarity×Volume=0.2 mol/L×25×10-3 L=5×10-3 mol Calculation of…
Q: Calculate pV2 + at each of the points in the titration of 23.38 mL of 0.0440 M EDTA with 0.0220 M…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Using the graph given, which metal can be titrated better with EDTA? A. Fe3+ B. Fe2+ C. Ca2+ D.…
A: From the graph we clearly see that complex formation constant of Fe3+ is higher among all the given…
Q: You took 25.00 mL of unknown water solution and titrated it with EDTA. The EDTA solution molarity…
A: Interpretation: a) To calculate g of CaCO3 in water if total hardness of water is due to CaCO3. b)…
Q: A 25.00 mL sample containing Fe3+ was treated with 10.00 mL of 0.03676 M EDTA to complex all the…
A: A 25.00 mL sample containing Fe3+ was treated with 10.00 mL of 0.03676 M EDTA to complex all the…
Q: 1. Calculate the concentration of ions in the following saturated solutions: (a) [1'] in Agl…
A: Hi, as you have posted multiple questions and have not mentioned which question you want us to solve…
Q: The hardness of a water sample may be determined by titrating a 100-mL sample of water with 0.010 M…
A: The above question can be solved using the formula M1V1= M2V2
Q: A 50.0 mL sample containing Cd2+ and Mn2+ was treated with 48.2 mL of 0.0600 M EDTA. Titration of…
A:
Q: The total concentration of Ca²+ and Mg²+ in a sample of hard water was determined by titrating a…
A: SOLUTION: Step 1: The concentration of magnesium ion is calculated as follows:
Q: 50.00 mL of a solution containing both Ni2* and Pb²+ ions requires 46.32 ml of a 0.02041 M EDTA…
A:
Q: In complexation volumetry, classify the statements below as true or false. Justify the one(s) that…
A: EDTA i.e. Ethylenediaminetetraacetic acid is a well known metal-chelating agent, it is hexadentate…
Q: Calculate pMn when 50.00 ml. of 0.100 0 M Mn is titrated with 25.00 ml. of 0.200 0 M EDTA. The…
A: The balanced equation for the reaction between Mn2+(aq) and EDTA, Y4-(aq) is: Mn2+(aq) + Y4-(aq) ⇌…
Q: . The Tl in a 9.57 g sample of rodenticide was oxidized to the trivalent state and treated with an…
A: The question is based on the concept of quantitative analysis. We have to quantitatively estimate…
Q: Consider the titration of 25.00 mL of 0.03555 M Co2+ by 0.02784 M EDTA at pH 10.00. Kf is 1045.…
A: The amount of EDTA required to reach the endpoint of the titration is determined as shown below.…
Q: For the titration of 20.0 mL of 0.0100 M EDTA with 50.0 mL of 0.0200 M MNPO4 at pH = 10.00,…
A: The given information is: Volume of EDTA = 20.0ml Molarity of EDTA= 0.010 M Volume of MnPO4 = 50.0ml…
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: Using the graph given, which metal can be titrated better with EDTA? A)Fe3+ B) Fe2+ C) Ca2+ D) Hg2+
A: From the graph ,it is clear that Fe 3+ has highest complex formation constant .
Q: An EDTA solution was allowed to react with Pb²⁺ to produce 0.25 M PbY²⁻, 2.67×10⁻⁸ M Pb²⁺ and an…
A: The reaction is: Pb2++EDTA⇔PbY2-
Q: Calculate a titration curve for 10.0 mL of 1.00 mM Ca?* with 1.0 mM EDTA at pH 9.0.
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: 3. A solution contains 1.694 mg of CoSo. (155.0 g/mol) per milliliter. a. Calculate the volume of…
A: a) Amount of CoSO4 = 1.694 mg/mL Calculation of mass of CoSO4: Mass=1.694 mg mL-1×25 mL=42.35 mg…
Q: solution was prepared by dissolving about 3.0 g of NaH2Y2·2H2O in approximately 1 L of water and…
A: At equivalence point, V1× S1 = V2 × S2 Where V1 and V2 are the initial and final volume…
Q: Considering the graph given, what is the most suitable pH for the titration of calcium with EDTA?…
A: The determination of the calcium by titration with EDTA is one of the classic methods. The structure…
Q: A sample of pure CaCO3 weighing 0.2428g is dissolved in HCl and the solution diluted to 250ml in a…
A: mass CaCO3 = 0.2428 g Concentration of CaCO3 in original solution = (mass CaCO3) / (volume of…
Q: You are asked to titrate a Mn3+ solution with EDTA at pH 9.00. The overall ionic strength of the…
A: Given- Log k = 25.2k =1025.2now αEDTA4-=5.4 ×10-2×1025.2 (a).k'(conditional formation constant…
Q: To determine the concentration of an EDTA solution, the following magnesium(II) solution is…
A: Calcium and magnesium dissolved in water are two most common minerals that make water Hard. Degree…
Q: using a buffer at pH 3.0, calculate the concentration of Ni2+ in a solution that was prepared by…
A: i)
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: 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 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: A sample of mineral water containing Ca and Mg was analyzed by a complexation titration using EDTA…
A: Hardness of Ca2+ ions of the sample in gram of CaCO3 in ppm = M(Ca2+) ×M.w.(CaCO3)×106103 Hardness…
Q: Based on the diagram, what metal cation(s) can be titrated with EDTA at pH 7? a) Mn2+ b) Sr2+ c)…
A: According to the given graph, metal ions with high log(KMY) value can be titrated at low pH, and…
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: EDTA cannot be used as a primary standard always. When can EDTA be used as a primary standard ?…
A: The acid-base titration is involves the reaction of acid with base to calculate the concentration of…
Q: Question attached
A:
Q: Consider the titration of 100.0 mL of 0.010 0 M Ce4+ in 1 M HClO4 by 0.040 0 M Cu+ to give Ce3+ and…
A:
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: A 1.000 ml aliquot of a solution containing Cu* and Ni* is treated with 25.00 mL of a 0.03468 M EDTA…
A: EDTA is Ethylenediamine tetra acetic acid which is used as a chelating ligand. The balanced chemical…
Q: A sample of mineral water containing Ca and Mg was analyzed by a complexation titration using EDTA…
A:
A 50.00 mL solution containing Ni2+ and Fe2+ was treated EDTA to bind all the metal ions. After back titration, the amount of EDTA used is 2.500 mmol. In another 50.00 mL solution was added pyrophosphate to mask the Fe2+ ions, and the solution required 25.00 mL of 0.04500 M EDTA. Calculate the ppm Fe (55.85 g/mol) in the solution.
Step by step
Solved in 2 steps with 1 images
- 3. A 50.00 mL solution containing Ni2+ and Fe2+ was treated EDTA to bind all the metal ions. After back-titration, the amount of EDTA used is 2.500 mmol. In another 50.00 mL solution was added pyrophosphate to mask the Fe2+ ions, and the solution required 25.00 mL of 0.04500 M EDTA. Calculate the ppm Fe (55.85 g/mol) in the solution.0.8153 g of a sample containing Pb(NO3)2 was taken, dissolved in water, and 40.20 mL of 0.06 M EDTA was added. What is the percentage of Pb(NO3)2 since the excess EDTA is back-titrated with 23.10 mL of 0.02 M EDTA? (Pb(NO3)2: 331 g/mol, Pb: 207 g/mol)A 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.
- Is this for Average Molarity of EDTA Standard Solution? Then, would it be always the same with average Molarity of EDTA? How about the Ca Titer (mg Ca/mL of EDTA Solution? Show step by step solution.An unknown Ca solution was prepared by weighing a 2.122 g sample, dissolving it in HCl and then titrating this unknown Ca2+ solution with 41.72 mL of a 0.1160 M standard EDTA solution to reach the endpoint at pH = 10.00 using Eriochrome Black T indicator. Calculate the % CaO in the sample [MW CaO = 56.08 g/mol; AW Ca = 40.08 g/mol]. The reaction is a 1:1 Ca:EDTA relationship.As part of a geological team that studied a local cave, you brought with you a bunch of 1.00 g rock samples to be studied. Each rock was prepared and titrated against 0.050 M EDTA. a. Calculate the percent calcite (CaCO3) content of rock A if it was titrated with 48.0 mL EDTA
- At pH 7, what metal ions can be titrated by EDTA?A 0.5745 g sample of an alloy containing principally bismuth and lead is dissolved in nitric acid and diluted to 250.0 mL in a volumetric flask. A 50.00 mL aliquot is withdrawn, the pH adjusted to 1.5, and the bismuth titrated with 30.26 mL of 0.01024 M EDTA. The pH of the solution is then increased to 5.0 and the lead titrated with 20.42 mL of the same EDTA solution. Calculate the percentages of lead and bismuth in the alloy.7. A solution contains 1.569 mg/mL of CoSO4(MM = 155.0 g/mol). Calculate the volume of 0.007840 M EDTA needed to titrate a 25.00 mL aliquot of this solution. 8. Calculate the volume of 0.0500 M EDTA needed to titrate 29.13 mL of 0.0598 M Mg(NO3)2.
- Calculate the concentration of Ni2+ in a solution that was prepared by mixing 40.00 mL of 0.0400M Ni2+ with 30.00 mL of 0.0600M EDTA. The mixture was buffered to a pH of 6.0.The hardness of a water sample may be determined by titrating a 100-mL sample of water with 0.010 M EDTA. If the Eriochrome Black T (EBT) end point occurs after 12.3 mL of the EDTA solution is added, calculate the water hardness in terms of (1) ppm CaCO3 and (2) mM Ca2+.Calamine, which is used for relief of skin irritations, is a mixture of zinc and iron oxides. A 1.022-g sample of dried calamine was dissolved in acid and diluted to 250.0 mL. A 50.00 mL aliquot was suitably buffered and titrated with 2.40 mL of 0.002727 M ZnY-2 (Zn-EDTA) solution to allow the following reaction: Fe+3 + ZnY-2 → FeY- + Zn+2. Molecular mass: Fe2O3 = 165.74 a. The weight of sample in the aliquot portion is _________g ? b. the percentage composition of Fe2O3 in the sample is ______ % ?