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. 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.

Q: arefully weighed 280mg Calcium carbonate was used in the standardization of an EDTA solution.…

A: Millimoles of a component is calculated by - concentration (mol/L or M) × volume used (mL). While…

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: A 47.00 ml aliquot from a 0.490 L solution that contains 0.410 g of MnSO, (MW = 151.00 g/mol)…

A:

Q: A 0.3045 g of CaCO3 primary standard was dissolved using concentrated HCl, evaporated to incipient…

A: Solution -

Q: 3. A sample of pure CaCO3 (MW 100.09) weighing 0.4148 g is dissolved in 1: 1 hydrochloric acid and…

A:

Q: A 49.10 mL aliquot from a 0.500 L solution that contains 0.530 g of MnSO4 (MW=151.00 g/mol) required…

A: Solution -

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: 100 mL of mineral water containing Mg2+ and Ca2+ is taken and titrated with 86.65 mL of 0.06120 M…

A: We know that   EDTA forms 1:1 complex with metals Mg+2 and Ca+2 Initial moles of EDTA = M*V =…

Q: 10.0 ml sample of Mg2+ and Nat mixture was titrated against 0.02 M EDTA. It is required 20.0 ml of…

A:

Q: A 5.00 mL tap water sample was measured out with a volumetric pipette, and added to a 25 mL…

A: Given : volume Na2EDTA.2H2O used = 0.635 mL Concentration of Na2EDTA.2H2O = 0.0100 M And volume of…

Q: A 0.3045 g of CaCO3 primary standard was dissolved using concentrated HCl, evaporated to incipient…

A:

Q: For complexometric titration of Ca (II) ions in the shell of an egg sample weighing 59,427 g, the…

A: From the result of complexometric titration, concentration of Ca2+ in the egg shell has to be…

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: 1.) A 0.1278-g sample of primary standard Na2C2O4 required exactly 60.04 mL of permanganate solution…

A: Given data,Mass of Na2C2O4=0.1278gVolume of KMnO4=60.04mL=0.06004LVolume of La3+=50mLVolume of…

Q: 6. A mixture that weighed 1.0105 g may contain NaOH, Na,CO; and NaHCO. It was dissolved in 100 mL of…

A: A question based on solutions that is to be accomplished.

Q: An antacid tablet, weighing 1.25 g, was dissolved in a 1.0 L volumetric flask to allow for…

A: Given: Mass of tablet=1.25g Volume of solution=1.0L Volume of aliquot 10.0mL Molarity of…

Q: Salt MgCO3 Mg(OH)2 Theoretical Ksp 3.5 x 10-8 1.8 x 10-11 For the standardization of the HCI…

A: Dear student acc to bartleby guidelines I can solve only first three subparts of the posted…

Q: A 5.323 g of dried eggshell is transferred to a 250-mL beaker and dissolved in 25 mL of 6 M HCl. The…

A:

Q: An antacid tablet, weighing 1.25 g, was dissolved in a 1.0 L volumetric flask to allow for…

A: Given data,Mass of tablet=1.25gVolume of solution=1.0LVolume of aliquot=10.0mLMolarity of…

Q: The sulfate in a247.1 mg sample was precipitated as BasO4 by addition of 25.00 mL of 0.03992 M…

A: Given: Mass of sulfate         = 247.1 mg Volume of BaCl2       = 25.00 mL Molarity of of BaCl2  =…

Q: A 50.00-mL sample of water containing Ca2+ and Mg2+ is titrated with 10.28 mL of 0.01001 M EDTA in…

A: Given: Volume of water sample = 50.00 mL Concentration of EDTA = 0.01001 M Volume of EDTA at 1st…

Q: 50.00  mL aliquot of city drinking water was treated with a small amount of ammonia – ammonium…

A: Millimoles = molarity*volume (in ml) Milligrams= millimoles* molar mass

Q: Standardization of EDTA was done using MgSO4 standard wherein a 50-mL aliquot of solution obtained…

A: Mass of MgSO4 = 0.480 g in 500 mL (0.500 L) Volume of MgSO4 = 50 mL  Volume of EDTA = 39.4 mL Mass…

Q: (a) A supplement tablet containing about 300.00 mg of calcium ion was dissolved, filtered, and…

A: [EDTA] = 0.0100 M Volume of titration volume of EDTA =…

Q: 1. How much volume (mL)  is needed to standardize 0.05M of EDTA using 180mg of magnesium ribbon? MW:…

A:

Q: A deepwell water sample of 100 mL was titrated with 0.010 M EDTA at pH 10 ( with Mg-EDTA pH 10…

A: Solution                         Given that Deepwell water sample = 100 ml Titrated with = 0.010 M…

Q: A water sample was tested for water hardness. A 50.00 mL sample, prepared and buffered to pH 10,…

A: a. At the pH = 10, EDTA form complex with both Ca2+ and Mg2+ ion and the total hardness of water is…

Q: A 30-mL portion of a solution containing Ca²+ and Mg2+ was titrated with 28.19 mL of 0.207 M EDTA at…

A: Given that, In the first titration Volume of Ca-Mg solution = 30 mL Volume of EDTA used = 28.19 mL…

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: A foot powder sample containing Zn was dissolved on 50.00 ml water and was titrated to the end point…

A:

Q: A sample of pure CaCO3 weighing 0.2428g is dissolved in HCI acid and the solution diluted to 250.0ml…

A:

Q: What is the MW of calcium carbonate?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: Is this for Average Molarity of EDTA Standard Solution? Then, would it be always the same with…

A: Recall the given equation,                       Ca2+ aq  +  EDTA4- aq  →  CaEDTA2- aqHere, we…

Q: Given: You weigh out exactly 0.200 g of Fe(NH4)2(SO4)2·6H2O and dissolve it in the 100.00 mL…

A: moles of complex taken = mass / molar mass = 0.2 / 392.14 = 5.1 X 10-4 approx Hence molarity of the…

Q: The concentration of a solution of EDTA was determined by standardizing against a solution of Ca2+…

A: Weight of CaCO3 = 0.4302 g. Volume of CaCO3 solution = 60 mL. The volume of EDTA used = 632 mL…

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 0.3045 g of CaCO3 primary standard was dissolved using concentrated HCl, evaporated to incipient…

A: Given,  0.3045 g of CaCO3 dissolved in concentrated HCl Dilute to 250 mL  Molar mass of CaCO3 =…

Q: To standardize EDTA solution, three independent titrations were conducted, each with 20 mL of 0.01…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Titration of 0.2121 g of primary standard Na, C,04 (133.999 g/mol) required 21.66 mL of KMnO4…

A: Given balanced equation of reaction of Na2C2O4 with KMnO4:  2 MnO4- + 5 C2O42- + 16 H+ → 2 Mn2+ + 10…

Q: A water sample was tested for hardness. To titrate Ca2* and Mg2+, a 25.00-mL sample needed 7.39 ml…

A:

Q: A standard CaCO3 solution is prepared by dissolving 0.4193g in enough dilute HCl to effect solution…

A: The given data contains, weight of CaCO3 =0.4193 g volume of EDTA =23.62 ml

Q: In the titration of 25.00 mL of a water sample, it took 20.840 mL of 4.350x 10−3 M EDTA solution to…

A:

Q: A solution prepared by mixing 60.0 mL of 0.360 M AgNO, and 60.0 mL of 0.360 M TINO, was titrated…

A: (1) AgBr Precipitate will form first, as we have Ksp Value for AgBr is lower then…

Q: Given that the titration of Ca2+ and Mg2+ in a 50.00-mL sample of hard water required 22.35 mL of…

A:

Q: An unknown solution containing 25.00 mL of Ni2+ in dilute HCl is treated with a known excess of…

A: Given, Ni2+=25.0 mLEDTA= 25.0 mLConcentration of EDTA =0.05382 MZn2+=0.02299 MVolume= 17.0 mL

Q: um in physiologic fluids can be determined by a complexometric titration with EDTA. In one such…

A: The method is used for the titration calcium with EDTA is called a complex metric titration. This…

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: 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…

Q: Report the %w/w KCl and NaBr in the sample.

A: %w/w is used to calculate the concentration. formula, %w/w=mass of element in gramsmass of sample…