To standardize EDTA solution, three independent titrations were conducted,cach with 20 mL of 0.01 (N) hard water. The average volumes of EDTAconsumed at the end point of the titrations was 23.3 mL respectively.The same EDTA solution was used to determine the hardness of your hostelwater. In each of the three independent experiments, 60 mL of your hostelwater was used. The average volume of EDTA solution consumed in thethree titrations is 24.9 mL. The hardness of your hotel water in terms ofCACO3 is: Anhydrous CuO4S is white in color, but a solution of coper (II) sulphateturns blue. Which of the following statements is/are true for thisobservation?(i) It forms a hydrated compound, thus regaining its color(ii) The color is due to metal-to-ligand charge transfer transition(iii) The octahedral aquo-complex gives rise to Laporte relaxed d-dtransition(iv)The octahedral aquo-complex gives rise to spin- allowed & Laporte-allowed LMCT transition(v) The tetrahedral aquo-complex gives rise to Laporte allowed d-dtransition.Options:(a) (i) & (iii)(b) (ii) & (iv)(c) (ii)(d) (v)(e) (iv)

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To standardize EDTA solution, three independent titrations were conducted, each with 20 mL of 0.01 (N) hard water. The average volumes of EDTA consumed at the end point of the titrations was 23.3 mL respectively. The same EDTA solution was used to determine the hardness of your hostel water. In each of the three independent experiments, 60 mL of your hostel water was used. The average volume of EDTA solution consumed in the three titrations is 24.9 mL. The hardness of your hotel water in terms of CACO3 is:

To standardize EDTA solution, three independent titrations were conducted, each with 20 mL of 0.01 (N) hard water. The average volumes of EDTA consumed at the end point of the titrations was 23.3 mL respectively. The same EDTA solution was used to determine the hardness of your hostel water. In each of the three independent experiments, 60 mL of your hostel water was used. The average volume of EDTA solution consumed in the three titrations is 24.9 mL. The hardness of your hotel water in terms of CACO3 is:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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To adjust the EDTA solution, a 0.01 M 10 mL Ca+2 sample was taken and 10 mL of pH 10 buffer was added to it, and the volume was completed to 100 mL. Then, two drops of EBT indicators were added and titrated with EDTA. Since the consumption is 10.4 mL, which of the following is the concentration of the EDTA solution in terms of molarity? A. 0.0076B.0.0101C. 0.0096D.0.0067
Consider the titration of 27.00 mL of 0.100 M HNO3 with 0.0900 M KOH. Calculate the pH at the following volumes of the titrant: VT = 0.00 VT = 12.50 VT = 17.50 VT = 30.00 VT = 37.50 VT = 42.50
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A solution containing 60 mL of a 0.025 mol / L metal ion (Mn +) buffer buffered to pH 7.0 was titrated with a 0.05 mol / L EDTA solution. Data: Conditional formation constant (Kf)=10^15. Determine: i) The concentration of the free metal when ½ of the equivalence volume is added. ii) the concentration of free metal in the equivalence volume. iii) the concentration of free metal with an excess of 2 mL of EDTA? (Data - EDTA constants: K1=0.01; K2=2.19.10^-3; K3=6.92.10^-7; K4=5.75.10^-11)
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