Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Question
![Ligand X forms a complex with both cobalt and copper, each of which has a maximum absorbance at 510 nm and 645 nm.
respectively. A 0.243 g sample containing cobalt and copper was dissolved and diluted to a volume of 100.0 mL. A solution
containing ligand X was added to a 50.0 mL aliquot of the sample solution and diluted to a final volume of 100.0 mL. The
measured absorbance of the unknown solution was 0.503 at 510 nm and 0.368 at 645 nm, when measured with a 1.00 cm cell.
The molar absorptivities of the cobalt and copper complexes at each wavelength are shown in the table.
Molar Absorptivity (c. M-'cm-¹)
Wavelength
[Co² =
A, nm
[Cu²+] =
510
645
3.125 x10-5
Incorrect
Co
2.867 x10-5
3.7630 x 10²
What is the concentration of cobalt and copper in the final diluted solution?
1282
Cu
5707
18090
M
M](https://content.bartleby.com/qna-images/question/d55d6915-7b2d-4b6a-a3ee-98c8dde8390b/e0457db1-3010-42a7-97b9-22b02cbcb046/rlvi7cl_processed.jpeg)
Transcribed Image Text:Ligand X forms a complex with both cobalt and copper, each of which has a maximum absorbance at 510 nm and 645 nm.
respectively. A 0.243 g sample containing cobalt and copper was dissolved and diluted to a volume of 100.0 mL. A solution
containing ligand X was added to a 50.0 mL aliquot of the sample solution and diluted to a final volume of 100.0 mL. The
measured absorbance of the unknown solution was 0.503 at 510 nm and 0.368 at 645 nm, when measured with a 1.00 cm cell.
The molar absorptivities of the cobalt and copper complexes at each wavelength are shown in the table.
Molar Absorptivity (c. M-'cm-¹)
Wavelength
[Co² =
A, nm
[Cu²+] =
510
645
3.125 x10-5
Incorrect
Co
2.867 x10-5
3.7630 x 10²
What is the concentration of cobalt and copper in the final diluted solution?
1282
Cu
5707
18090
M
M
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by stepSolved in 3 steps with 2 images
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
- 14.4 g of magnesium nitrate is dissolved in 1.20 L of water. 25 mL of this solution is taken and diluted to 175 mL with water. What is the final concentration of the nitrate ion?arrow_forwardWhat are the spectator ions present when aqueous solutions of rubidium phosphate and yttrium(II) bromide are mixed?arrow_forwardWrite the balanced NET ionic equation for the reaction when aqueous BaCl₂ and aqueous (NH₄)₂SO₄ are mixed in solution to form aqueous NH₄Cl and solid BaSO₄.arrow_forward
- What TYPE of chemical reaction is this? aqueous solutions of magnesium bicarbonate and aluminum chloride reactarrow_forwardA 14.8 mL sample of 6 M sulfuric acid is diluted to a volume of 1725 mL. What is the molarity of the diluted solution?arrow_forwardIron ore is impure Fe2O3. When solid Fe2O3 is heated with an excess of carbon, iron metal, and carbon monoxide are produced. From a sample of ore weighing 878 kg, 515 kg of pure iron is obtained. What is the % Fe2O3, by mass, in the ore sample?arrow_forward
- A chemist places 5.45 g of sodium carbonate in a 250 mL volumetric flask and fills it to the mark with water. What is the molarity of the sample?arrow_forwardWhat is the molarity of the solution resulting from dissolving 13.5 g of silver nitrate in enough water to give a final volume of 280. mLarrow_forward1) Lead (I) nitrate reacts with sodium chloride. A) Write a balanced chemical equation to describe this reaction B) 100.0 mL of a lead (I) nitrate solution reacts with excess sodium chloride solution and produces 6.95 grams of precipitate. 2) Calculate the moles of the precipitate produced by the reaction. A) Calculate the moles of lead in the original solution. B) Calculate the molarity of the 100.0 mL lead (I) nitrate solution.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning 
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY