A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The student takes a 5.00 mL aliquot of the first solution and dilutes it to make 100.00 mL of a second solution. The student places a sample of the second solution in a cuvette for analysis using spectrophotometry. The molarity of the copper solution in the cuvette was determined by spectrophotometric analysis to be 2.90 x 10-2 M Cu. Calculate the mass of copper in the Jefferson nickel used to make the first solution. Use the diagram to help visualize the dilution process.

A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The student takes a 5.00 mL aliquot of the first solution and dilutes it to make 100.00 mL of a second solution. The student places a sample of the second solution in a cuvette for analysis using spectrophotometry. The molarity of the copper solution in the cuvette was determined by spectrophotometric analysis to be 2.90 x 10-2 M Cu. Calculate the mass of copper in the Jefferson nickel used to make the first solution. Use the diagram to help visualize the dilution process.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

A student dissolves a Jefferson nickel to make 100.00 mL
of solution in a volumetric flask. The student takes a
5.00 mL aliquot of the first solution and dilutes it to make
100.00 mL of a second solution. The student places a
sample of the second solution in a cuvette for analysis
using spectrophotometry.
The molarity of the copper solution in the cuvette was
determined by spectrophotometric analysis to be
2.90 x 10-2 M Cu. Calculate the mass of copper in the
Jefferson nickel used to make the first solution.
Use the diagram to help visualize the dilution process.
WE
IN GOD
TRUST
100 mL
LIBERTY 200
5 mL
100 mL
cuvette

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