What is the mass of pure dry CaCO3 (MW: 100.0869 g/mol) standard used in the standardization of EDTA solution? Assume that 1.758 M EDTA solution was computed based on the titration of CaCO3 standard. The volume of titrant needed to reach the endpoint was 35.00 mL.   Ca2+ + Y4- →  CaY2-         0.1500 g                       5.630 g     6.158 g                                     0.6158 g

Q: If in procedure B analysis of Zn2+ alone, 8.55 mL of 0.0100 M EDTA solution is used to fully titrate…

A: Given: Volume of EDTA =8.55 mL Concentration of EDTA = 0.0100 M To determine: i) mmol of Zn2+

Q: Which of the following compounds is likely to have an unpleasant odor? CH3CH2OH CH3CH2OCH2CH3…

A: For the first question, we have to find the compound that has an unpleasant odor. For the second…

Q: A student performed three aqueous layer titrations in Part 1 using a standard sodium thiosulfate…

A: The objective of the question is to find the number of moles of thiosulfate used in the second…

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: Given the following experimental data, calculate the molarity and the pKa of the acid analyte (HA)…

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Q: The mass percent of KHP in an unknown salt sample was determined using both volumetric and…

A: We are given replicate values for the mass percent KHP for two different methods.  We have to…

Q: An unknown Ca solution was prepared by weighing a 2.122 g sample, dissolving it in HCl and then…

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Q: Titration of Ca2+ and Mg2+ in a 50.00 mL sample of hard water required 23.65 mL of 0.01205 M EDTA. A…

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Q: In the titration of 25.00 mL of a water sample, it took 20.690 mL of 4.050x 10−3 M EDTA solution to…

A: Number of moles of EDTA is determined as follows,

Q: A phosphate buffer solution (25.00 mL sample) used for a growth medium was titrated with 0.1000 M…

A: Given Data: Phosphate buffer used in titration = 25.00 ml. Phosphate buffer contain both sodium…

Q: A student wants to prepare a standard solution of BSA. They create a stock solution of BSA by add…

A: Concentration of stock solution=0.174 g10 mL=0.0174 g/mL

Q: Final Aqueous Layer Burette Reading Initial Aqueous Layer Burette Reading Final Thiosulfate Burette…

A: For third titration,Initial Thiosulfate burette reading = 6.83 mLFinal thiosulfate burette reading =…

Q: The titration on the right was performed by placing 10.00 mL solution in an Erlenmeyer flask and…

A: Indicators -  Acid, base indicators are basically weak organic acids that change color when they…

Q: A sample of water from a river was analyzed by titrating a 125 mL aliquot with 0.0210 M EDTA,…

A: EDTA reacts with Ca in 1:1 ratio to form CaEDTA complex. By using definite concentration of EDTA ,…

Q: pH 10 buffer

A: Eriochrome Black T (EBT) is a complexometric indicator that is used in complexometric titrations.…

Q: Titration of Ca 2+ and Mg 2+ in a 50.00 mL sample required 25.50 mL Of 0.01115 M EDTA. A second 50…

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Q: The titration curve for the titration of a mixture of KI and KCl with AgNO3 is shown. Identify each…

A: We have to find out the equation is used to calculate  concentration  of Ag+ ionat second equivalent…

Q: Concentration sodium thiosulfate solution used: 0.056 mol L-¹ ACCURATE TITRATION VOLUME OF SODIUM…

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Q: You titrate 50.00 mL of hard water with 14.86 mL of 0.0100 M EDTA solution. How many moles of Ca²+…

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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: 3. A 3.7145 g portion of disodium EDTA dihydrate (molecular weight 372.24 g/mol) is dissolved in…

A: Given Data: Molarity of EDTA solution = 9.9788 x 10-3 M Volume of EDTA solution used = 11.23 mL…

Q: A 47.90 mL aliquot from a 0.500 L solution that contains 0.480 g of MnSO4 (MW= 151.00 g/mol)…

A: The objective of the question is to determine the mass of calcium carbonate.

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: f 5.85 mL of 0.00832 M EDTA solution were needed to titrate a 0.0225 L water sample to an Eriochrome…

A: Balanced reaction is :      Ca2+ + EDTA4- ===> [Ca-EDTA]2-

Q: 13. Anhydrous sodium carbonate is used as the primary standard to determine the exact concentration…

A: A primary standard is generally used in  titrations to identity the end-point. It must be highly…