The formation constant for the lead-EDTA complex (PbY^2 -) is 1.10 times 10^18. At pH 10.0,...
2 poin QUESTION 5 What is the value of conditional formation constant, Kr. for the EDTA-complex with Cu2+ at pH 10.07 Kr(Cuy) - 6.03x1018 Cu2+ + EDTA CuY2 (Use Table 11-1 in the textbook as a reference.) 1.2.01 x 1019 2.1.81 x 1018 3.3.21 x 1015 O4 7.66 x 10-20 5.6.03 x 1018 QUESTION 6 2 poir Consider titration of 24.00 ml of 0.0880 M Cuat solution with 0.110 M EDTA at pH 10.0. Find the concentration of free Cu2+...
Complex-Formation Titrations +2 10. Calculate the Ca concentration and pCa logCa D of a solution that results from the mixing of each of the following solutions (buffered at a pH of 10.0): +2 +2 +2 EDTA +10 The complexation reaction: Ca CaEDTA atapH of 10.0, has an Kefr r 5.0 s 10 +2 +10 Kerr-lCaEDTAI/(1 Ca.-11 EDTA I) = 5.0 x 10 a) Calculate the pCa of a solution of 50.0 ml of 0.0102 MCa with 50.0 ml of 0.0100...
4. 50.0 mL of 0.00200 M Ca2 solution buffer at pH 10.0 is titrated with 0.00200 M EDTA. At equivalence point (i.e. 50.0 mL EDTA has been added), what is the equilibrium concentration of Ca2, [Ca2], and what is the pCa? The formation constant of CaY, Kaa 5.0 x 1010, and α4 of EDTA at pH 10.0 is 0.35 4. 50.0 mL of 0.00200 M Ca2 solution buffer at pH 10.0 is titrated with 0.00200 M EDTA. At equivalence point...
8. The formation constant for Cay is 5.0 1010. At pH 11 constant of 1.8 * 10'. Calculate p in 50mL of a solution of 0.200 M Caat pH 10 after addition of (a) 0 mL, (b) 25 mL, (c) 50 mL, and (d) 75 mL of 0.200 MEDTA.
2+ EDTA is often used to preserve blood samples because it can complex with Ca which is necessary for clotting. The typical concentration of Ca2 in blood is 1.1 x 10° M and a typical concentration of 4 x 10 M Na2H2EDTA is added. The pH of blood is 7.2 and for this pH, the EDTA alpha fractions are 2 x 1010, 3 x 10, 0.12, 0.88 and 8.1 x 10-4 for α0, α1, α2, α3 and α4, respectively. The...
Please help. I will rate! A 0.4721 g sample of pewter, containing tin, lead, copper, and zinc, was dissolved in acid. Tin was precipitated as SnO 4 H,O and removed by filtration. The resulting filtrate and washings were diluted to a total volume of 250.0 mL. A 15.00 mL aliquot of this solution was buffered, and titration of the lead, copper, and zinc in solution required 34.45 mL of 0.001518 M EDTA. Thiosulfate was used to mask the copper in...
Find the conditional formation constant for Ba(EDTA)2− at pH 10.00, where logKf is 7.88 and αY4− is 0.30. Kf′= Find the concentration of free Ba2+ in 0.040 M Na2[Ba(EDTA)] at pH 10.00.
Find the conditional formation constant for Ba(EDTA)2- at pH 10.00, where log Kf is 7.88 and ay- is 0.30. Find the concentration of free Ba2+ in 0.030 M Na, [Ba(EDTA)] at pH 10.00. [Ba²+] =
Find the conditional formation constant for Ba(EDTA)2- at pH 9.00, where log Kf is 7.88 and Qyt is 0.041. K = 3.11 <106 Find the concentration of free Ba²+ in 0.060 M Na, [Ba(EDTA)] at pH 9.00. [Ba2+] = 1.93 x10-8
Find the conditional formation constant for Ba(EDTA)2- at pH 11.00, where log Kf is 7.88 and ay is 0.81. K4 = Find the concentration of free Ba2+ in 0.070 M Na, [Ba(EDTA)] at pH 11.00. [Ba2+] = .. about us careers privacy policy terms of use contact us