Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 14, Problem 14.14QAP
Aluminum forms a 1:1 complex with 2-hydroxy-1-naphthaldehyde p -methoxybenzoylhydraxonal, which absorbs UV radiation at 285 nm. Under pseudo-first-order conditions, a plot of the initial
rate =1.92 c Al- 0.250
Find the concentration of aluminum in a solution that exhibits a rate of 0.53 absorbance units per second under the same experimental conditions.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
For the gas phase isomerization of isopropenyl allyl ether,
CH2=C(CH3)-O-CH2CH=CH2-->CH3COCH2CH2CH=CH2
the rate constant at 405 K is 2.60x10^-5 s^-1 and the rate constant at 440. K is 4.75x10^-4 s^-1.
The activation energy for the gas phase isomerization of isopropenyl allyl ether is ________ kJ.
he activation energy for the gas phase isomerization of cyclobutene is 136 kJ.(CH2)2(CH)2CH2=CHCH=CH2The rate constant at 428 K is 2.88×10-4 /s. The rate constant will be 3.08×10-3 /s at K.
A medication has a first order elimination rate constant of 0.344 h-1. What is its half life?
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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- (1) The activation energy for the gas phase isomerization of methyl cis-cinnamate is 174 kJ.cis-C6H5CH=CHCOOCH3trans-C6H5CH=CHCOOCH3The rate constant at 621 K is 8.10×10-5 /s. The rate constant will be 8.42×10-4 /s at_____ K. (1b) The activation energy for the gas phase isomerization of methyl cis-cinnamate is 174 kJ.cis-C6H5CH=CHCOOCH3trans-C6H5CH=CHCOOCH3The rate constant at 654 K is 4.57×10-4 /s. The rate constant will be /s at _______ 695 K.arrow_forwardUse the References to access important values if needed for this question. For the gas phase isomerization of methyl cis-cinnamate, cis-C6H5 CH=CHCOOCH3 → trans-C6H5 CH=CHCOOCH3 the rate constant at 669 K is 9.12 x 10-4 s and the rate constant at 711 Kis 5.79 x 107 s-¹. -3 The activation energy for the gas phase isomerization of methyl cis-cinnamate is kJ.arrow_forwardFor the gas phase isomerization of cis-1,2-diphenylethene, cis-C6H5 CH=CHC6H5 → trans-C6H5 CH=CHC6H5 the rate constant at 569 K is 2.11 × 10-4 s¯¹ and the rate constant at 608 K is 2.39 × 10 -3 S The activation energy for the gas phase isomerization of cis-1,2-diphenylethene is | s-¹. S kJ.arrow_forward
- a plausible mechanism (i) MeCCLi (ii) BRCH 2COME (ii) CH 3CO2Harrow_forwardI'm not really sure how to approach this problem. I thought you could substitute the half life equation into the integrated equation for first order reactions, but that didn't work.arrow_forwardThe activation energy for the gas phase decomposition of acetic anhydride is 144 kJ. (CH3CO)2O → CH₂=C=O + CH3COOH S The rate constant at 493 K is 5.48 x 10-4 s-1. The rate constant will be 0.00745s¹ at K.arrow_forward
- The activation energy for the gas phase decomposition of acetic anhydride is 144 k). (CH3CO)20→CH2=C=0 + CH3COOH The rate constant at 502 K is 9.94x10 4/s. The rate constant will be 9.74x10 3/s at K.arrow_forwardRate information was obtained for the following reaction at 25°C and 33°C; Cr(H2O)6 3+ + SCN¯ ---> Cr(H2O)5NCS2+ + H2O(l) Initial Rate [Cr(H2O)6 3+] [SCN-] @ 25°C 2.0x10-11 1.0x10-4 0.10 2.0x10-10 1.0x10-3 0.10 9.0x10-10 2.0x10-3 0.15 2.4x10-9 3.0x10-3 0.20 @ 33°C 1.4x10-10 1.0x10-4 0.20 Can a 4th order reaction occur?arrow_forwardRate information was obtained for the following reaction at 25°C and 33°C; Cr(H2O)6 3+ + SCN¯ ---> Cr(H2O)5NCS2+ + H2O(l) Initial Rate [Cr(H2O)6 3+] [SCN-] @ 25°C 2.0x10-11 1.0x10-4 0.10 2.0x10-10 1.0x10-3 0.10 9.0x10-10 2.0x10-3 0.15 2.4x10-9 3.0x10-3 0.20 @ 33°C 1.4x10-10 1.0x10-4 0.20 a) Write a rate law consistent with the experimental data. b) What is the value of the rate constant at 25°C? c) What is the value of the rate constant at 33°C? d) What is the activation energy for this reaction? e) Can a 4th order reaction occur?arrow_forward
- The activation energy for the gas phase isomerization of cis-1,2-diphenylethene is 179 kJ. cis-C6H5 CH=CHC6H5 → trans-C6H5 CH=CHC6H5 -4 1 -1 The rate constant at 584 K is 5.64 × 10¯ S The rate constant will be 0.00603 s ▪ at | K.arrow_forward11. A researcher wants to synthesize some pentaaminefluoromanganese(l) starting with pentaaminechloromanganese(l). These are octahedral compounds. In order to identify the mechanism of reaction the researcher increased the concentration of chloride and found that no Mn(NH3)sF is formed. Do you think this is a dissociative or associative mechanism? Draw out the reaction steps. What is the coordination number for the intermediate?arrow_forwardTRUE or FALSE: For a transition state to be considered as the rate- determining step (rds) in a multi-step reaction, it must have the highest change in enthalpy.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
Enzymes - Effect of cofactors on enzyme; Author: Tutorials Point (India) Ltd;https://www.youtube.com/watch?v=AkAbIwxyUs4;License: Standard YouTube License, CC-BY
Enzyme Catalysis Part-I; Author: NPTEL-NOC IITM;https://www.youtube.com/watch?v=aZE740JWZuQ;License: Standard Youtube License