Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
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Chapter 14, Problem 14.13QAP
Copper(II) forms a 1:1 complex with the organic complexing agent R in acidic medium. The formation ofthe complex can be monitored by spectrophotometry at 480 nm. Use the following data collected under pseudo-first-order conditions to construct a calibration curve of rate versus concentration of R. Find the concentration of copper(II) in an unknown whose rate under the same conditions was 6.2 × 10- 3A s-1.
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The following data were obtained on the initial rates of reaction of a d-metal complex in aqueous solution.
For the experiments a. [Y] = 2.7 mmol/dm3,
and for experiments b. [Y] = 6.1 mmol/dm3
Conc. complex/(mmol dm-3)
8.01
9.22
12.11
Exp. a. v/ (mol dm-3 s-1)
125
144
190
Exp. b. v/ (mol dm-3 s-1)
640
730
960
(a) What is the order of reaction with respect to the complex AND the reactant Y. Choose one.
(b) use the data above to calculate the rate constant.
k = ________ (mol/L/s, s-1, L/mol/s, or L2/mol2/s). 3 s.f. normal format.
The following data were obtained on the initial rates of reaction of a d-metal complex in aqueous solution.
For the experiments a. [Y] = 2.7 mmol/dm3,
and for experiments b. [Y] = 6.1 mmol/dm3
Conc. complex/(mmol dm-3)
8.01
9.22
12.11
Exp. a. v/ (mol dm-3 s-1)
125
144
190
Exp. b. v/ (mol dm-3 s-1)
640
730
960
(a) What is the order of reaction with respect to the complex AND the reactant Y.
(b) use the data above to calculate the rate constant.
k = ________ (mol/L/s, s-1, L/mol/s, or L2/mol2/s). 3 s.f. normal format.
The following data were obtained on the initial rates of reaction of a d-metal complex in aqueous solution.
For the experiments a. [Y] = 2.7 mmol/dm3,
and for experiments b. [Y] = 6.1 mmol/dm3
Conc. complex/(mmol dm-3)
8.01
9.22
12.11
Exp. a. v/ (mol dm-3 s-1)
125
144
190
Exp. b. v/ (mol dm-3 s-1)
640
730
960
(a) What is the order of reaction with respect to the complex AND the reactant Y. Choose one.
Chapter 14 Solutions
Principles of Instrumental Analysis
Ch. 14 - Prob. 14.1QAPCh. 14 - A 0.4740-g pesticide sample was decomposed by wet...Ch. 14 - Sketch a photometric titration curve for the...Ch. 14 - Prob. 14.4QAPCh. 14 - Prob. 14.5QAPCh. 14 - The accompanying data (1.00-cm cells) were...Ch. 14 - A 3.03-g petroleum specimen was decomposed by wet...Ch. 14 - Prob. 14.8QAPCh. 14 - Prob. 14.9QAPCh. 14 - The acid-base indicator HIn undergoes the...
Ch. 14 - Prob. 14.11QAPCh. 14 - Prob. 14.12QAPCh. 14 - Copper(II) forms a 1:1 complex with the organic...Ch. 14 - Aluminum forms a 1:1 complex with...Ch. 14 - Prob. 14.15QAPCh. 14 - Prob. 14.16QAPCh. 14 - Prob. 14.17QAPCh. 14 - Prob. 14.18QAPCh. 14 - Prob. 14.19QAPCh. 14 - Given the Information that...Ch. 14 - Prob. 14.21QAPCh. 14 - Mixing the chelating reagent B with Ni(II) forms...Ch. 14 - Prob. 14.23QAP
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