Principles of Instrumental Analysis, 6th Edition
6th Edition
ISBN: 9788131525579
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cenage Learning
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Textbook Question
Chapter 1, Problem 1.2QAP
What is the information processor in an instrument for measuring the color of a solution visually?
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The spectroscopic data given in the table was generated for two different concentrations of a solution.
Concentration (M)
Absorbance
0.0141
0.1391
0.1445
0.6015
What is the slope of the line formed by these points?
m =
3.545
What is the y-intercept?
b = 0.0893
What is the concentration of a solution with an absorbance of 0.333 ?
concentration:
Incorrect
M
Which instrument can be used best to detect metals in Water like POTASSIUM?
Make certain you record all measured values to the proper number of
significant figures and state the unit of each measured value.
A. Measuring the Mass of a Solid and Determining the Quality of a Balance
Unknown Number:
Balance/Desk Number:
Mass of unknown, first weighing:
(Reminder: Significant figures and units.)
Mass of unknown, second weighing:
1.32
1.33
Mass of unknown, third weighing:
132
Mass of unknown, fourth weighing:
1.34
Mass of unknown, fifth weighing:
1.32
Mass of unknown, sixth weighing:
1.33
Average mass of the unknown:
1.33
(Please show calculations here.)
1.32+1:33+ 1:32 t1:34 +1:32 + 1.33
='132666667 ?1'33
Highest measured mass:
Lowest measured mass:
Stand
devi
of the averaged values:
(Please show calculations here.)
Chapter 1 Solutions
Principles of Instrumental Analysis, 6th Edition
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