EP GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
11th Edition
ISBN: 9780133897340
Author: Petrucci
Publisher: PEARSON CO
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Chapter 24, Problem 50IAE
Interpretation Introduction
Interpretation:
The statement is to be verified by assuming the value of total metal ion concentrations for free EDTA.
Concept introduction:
Precipitation is defined as the formation of insoluble solid from the liquid solution. When two more soluble salts react in solution and comes with the solid insoluble product is called as precipitate.
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EXAMPLE: Chromium(III) is slow to react with EDTA (H4Y) and
is therefore determined by back-titration. A pharmaceutical
preparation containing chromium(III) is analyzed by treating a
2.63g sample with 5mL of (0.0103M) EDTA. Following reaction,
the unreacted EDTA is back-titrated with 1.32mL of (0.0112M) zinc
solution. What is the percent chromium chloride in the
pharmaceutical preparation?
Iron(III) is best determined by addition of excess EDTA, followed by back-titration with
a metal ion that reacts rapidly with EDTA. A 700.0-mg sample is dissolved, 20.00 mL of
0.0500M EDTA is added, and the excess EDTA is titrated with 5.08 mL of 0.0420M
copper(lI). Calculate the percentage of Fe,O, in the sample.
An alloy containing Ni, Fe and Cr was analyzed by a complexation titration using EDTA as titrant. A 0.7176 g sample of the alloy was dissolved in HNO3 and diluted to 250 mL in a flask. A 50.00 mL aliquot of the sample, treated with pyrophosphate to mask Fe and Cr, required 26.14 mL of 0.05831 M EDTA to reach the murexide endpoint. A second 50.00 mL aliquot was treated with hexamethylenetetramine to mask Cr and titration with 0.05831 M EDTA required 35.43 mL to reach the murexide endpoint. Finally, a third 50.00 mL aliquot was treated with 50.00 mL of 0.05831 M EDTA and titrated back to the murexide endpoint with 6.21 mL of 0.06316 M Cu(II). the weight percentages of Ni, Fe and Cr in the alloy.
Chapter 24 Solutions
EP GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
Ch. 24 - Prob. 1ECh. 24 - Prob. 2ECh. 24 - Prob. 3ECh. 24 - Write appropriate formulas for the following. a....Ch. 24 - Prob. 5ECh. 24 - Prob. 6ECh. 24 - Prob. 7ECh. 24 - Prob. 8ECh. 24 - Prob. 9ECh. 24 - Prob. 10E
Ch. 24 - Prob. 11ECh. 24 - Prob. 12ECh. 24 - If A, B, C, and D are four different ligands, a....Ch. 24 - Prob. 14ECh. 24 - Prob. 15ECh. 24 - The structures of four complex ions are given....Ch. 24 - Prob. 17ECh. 24 - Prob. 18ECh. 24 - Prob. 19ECh. 24 - In contrast to the case of Co2+ considered in...Ch. 24 - Prob. 21ECh. 24 - Prob. 22ECh. 24 - Prob. 23ECh. 24 - Prob. 24ECh. 24 - Prob. 25ECh. 24 - Prob. 26ECh. 24 - Prob. 27ECh. 24 - Prob. 28ECh. 24 - Prob. 29ECh. 24 - Prob. 30ECh. 24 - Prob. 31ECh. 24 - Prob. 32ECh. 24 - Prob. 33ECh. 24 - Prob. 34ECh. 24 - Prob. 35ECh. 24 - Prob. 36ECh. 24 - Prob. 37ECh. 24 - Draw dashed and solid wedge diagrams of...Ch. 24 - Prob. 39IAECh. 24 - Prob. 40IAECh. 24 - Prob. 41IAECh. 24 - Prob. 42IAECh. 24 - Prob. 43IAECh. 24 - Prob. 44IAECh. 24 - Prob. 45IAECh. 24 - Prob. 46IAECh. 24 - Prob. 47IAECh. 24 - Prob. 48IAECh. 24 - Prob. 49IAECh. 24 - Prob. 50IAECh. 24 - Prob. 51IAECh. 24 - Prob. 52IAECh. 24 - Prob. 53IAECh. 24 - Prob. 54IAECh. 24 - The compound CoCl22H2O4NH2 may be one of the...Ch. 24 - Prob. 56IAECh. 24 - Provide a valence bond description of the bonding...Ch. 24 - Prob. 58IAECh. 24 - Prob. 59IAECh. 24 - Prob. 60IAECh. 24 - Prob. 61IAECh. 24 - Prob. 62IAECh. 24 - The graph that follows represents the molar...Ch. 24 - Prob. 64FPCh. 24 - Prob. 65FPCh. 24 - The crystal field stabilization energy (CFSE) can...Ch. 24 - In your own words, describe the following terms or...Ch. 24 - Briefly describe each of the following ideas,...Ch. 24 - Prob. 69SAECh. 24 - The oxidation state of Ni in the complex ion...Ch. 24 - Prob. 71SAECh. 24 - Prob. 72SAECh. 24 - Prob. 73SAECh. 24 - Prob. 74SAECh. 24 - Prob. 75SAECh. 24 - The most soluble of the following solids in...Ch. 24 - Prob. 77SAECh. 24 - Write appropriate formulas for the following...Ch. 24 - Prob. 79SAECh. 24 - Prob. 80SAECh. 24 - Prob. 81SAECh. 24 - Prob. 82SAECh. 24 - Prob. 83SAECh. 24 - Prob. 84SAE
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