Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 09 Feb 2018 My Price 7.00

volumes of a solution

The volumes of a solution containing 1.10 ppm of Zn2+ shown in the table were pipetted into separatory funnels, each containing 5.00 mL of an unknown zinc solution. Each was extracted with three 5-mL aliquots of CCI4 containing an excess of 8-hydroxyquinoline. The extrats were then diluted to 24.0 mL and their fluorescence measured with a fluorometer. The results were the following.

(a) Construct a working curve from the data.

(b) Calculate a linear least-squares equation for the data.

(c) Calculate the standard deviation of the slope and intercept and the standard deviation about regression.

(d) Calculate the concentration of zinc in the sample.

(e) Calculate a standard deviation for the result in part (d).

Answers

Maurice Tutor
(5)
Status NEW Posted 09 Feb 2018 09:02 PM My Price 7.00

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