Example: You wish to prepare a calibration curve for the spectrophotometric determination of permanganate. You have a stock 0.100 M solution of KMnO4 and a series of 100 mL volumetric flasks. What volumes of the stock solution will you have to pipet into the flasks to prepare standards of 1.00 x10³, 2.00 x10³, 5.00 x10, and 10.0 x103 M KMnO4 solutions? Solution: for 1.00 x10-³ 0.1 (M1X V1)conc. = (M2 X V2)dil mmol mL (mmol); x V1 = 1.0 x 10-3 ( mL -) x 100 (ml) V₁= 1.0 mL stock solution. Take home work for the 2.00 x10³, 5.00 x10³, and 10.0 x10³ M.

Example: You wish to prepare a calibration curve for the spectrophotometric determination of permanganate. You have a stock 0.100 M solution of KMnO4 and a series of 100 mL volumetric flasks. What volumes of the stock solution will you have to pipet into the flasks to prepare standards of 1.00 x10³, 2.00 x10³, 5.00 x10, and 10.0 x103 M KMnO4 solutions? Solution: for 1.00 x10-³ 0.1 (M1X V1)conc. = (M2 X V2)dil mmol mL (mmol); x V1 = 1.0 x 10-3 ( mL -) x 100 (ml) V₁= 1.0 mL stock solution. Take home work for the 2.00 x10³, 5.00 x10³, and 10.0 x10³ M.

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

Example: You wish to prepare a calibration curve for the spectrophotometric
determination of permanganate. You have a stock 0.100 M solution of KMnO4 and
a series of 100 mL volumetric flasks. What volumes of the stock solution will you
have to pipet into the flasks to prepare standards of 1.00 x10³, 2.00 x10-³, 5.00
x103, and 10.0 x103 M KMnO4 solutions?
Solution: for 1.00 x10-³
0.1
(M1X V1)conc. = (M2 X V2) dil
mmol
|x V1 = 1.0 × 10-3 -) x 100 (ml)
mL
mmoly
mL
V₁= 1.0 mL stock solution. Take home work for the 2.00 x10-3, 5.00 x10³, and
10.0 x10-³ M.

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