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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Chapter 32, Problem 32.7QAP
Interpretation Introduction
(a)
Interpretation:
The total counting rate for sample is 450cpm (sample plus background) and the counting period for this rate is 15.0min. The counting rate for background is 7 cpm for time period 2.0 min. The value of corrected counting rate is to be determined.
Concept introduction:
The following formula will be used for the corrected counting rate-
Where,
Interpretation Introduction
(b)
Interpretation:
The total counting rate for sample is 450cpm (sample plus background) and the counting period for this rate is 15.0min. The counting rate for the background is 7 cpm for time period 2.0 min. The value of standard deviation
Concept introduction:
The formula used for the calculation of standard deviation for the corrected counting rate is-
Where,
Interpretation Introduction
(c)
Interpretation:
The total counting rate for sample is 450cpm (sample plus background) and the counting period for this rate is 15.0min. The counting rate for background is 7 cpm for time period 2.0 min. The value of 95% confidence interval for the corrected counting rate is to be determined.
Concept introduction:
The formula that will be used-
The formula used for the calculation of standard deviation for the corrected counting rate is-
Where,
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An open vessel containing water stands in a laboratory measuring 5.0 m x 5.0 m x 3.0 m at 25 °C ; the vapor pressure (vp) of water at this temperature is 3.2 kPa. When the system has come to equilibrium, what mass of water will be found in the air if there is no ventilation? Repeat the calculation for open vessels containing benzene (vp = 13.1 kPa) and mercury (vp = 0.23 Pa)
Chapter 32 Solutions
Principles of Instrumental Analysis, 6th Edition
Ch. 32 - Identify X in each of the following nuclear...Ch. 32 - Prob. 32.2QAPCh. 32 - Prob. 32.3QAPCh. 32 - Prob. 32.4QAPCh. 32 - Prob. 32.5QAPCh. 32 - Prob. 32.6QAPCh. 32 - Prob. 32.7QAPCh. 32 - Prob. 32.8QAPCh. 32 - Prob. 32.9QAPCh. 32 - Prob. 32.10QAP
Ch. 32 - Prob. 32.11QAPCh. 32 - Prob. 32.12QAPCh. 32 - Prob. 32.13QAPCh. 32 - Prob. 32.14QAPCh. 32 - Prob. 32.15QAPCh. 32 - Prob. 32.16QAPCh. 32 - Prob. 32.17QAPCh. 32 - The streptomycin in 500 g of a broth was...Ch. 32 - Show, via a calculation, that the average kinetic...Ch. 32 - Prob. 32.20QAPCh. 32 - Prob. 32.21QAP
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