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Fundamentals Of Analytical Chemistry

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter12: Gravimetric Methods Of Analysis

Section: Chapter Questions

Problem 12.2QAP

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Required information
The concentration of E. coli bacteria in a swimming area is monitored after a storm:
t (hr)
4
8
12
16 20
24
c (CFU/100 mL) 1600
1320
1000
890
650
560
The time is measured in hours following the end of the storm and the unit CFU is a "colony forming unit."
Employ the given base-10 model to estimate the concentration at the end of the storm (t = 0).
y = α5 105x
(Round the final answer to three decimal places.)
The concentration at t=0 is 1985.437 CFU/100 ml.

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