Question: I WILL UPVOTE PLEASE ONLY DO IT IF YOU ARE 100% CONFIDENT ) A sample of drinking water was tested for possible Uranium contamination. Atomic

I WILL UPVOTE PLEASE ONLY DO IT IF YOU ARE 100% CONFIDENT
I WILL UPVOTE PLEASE ONLY DO IT IF YOU ARE 100% CONFIDENT

) A sample of drinking water was tested for possible Uranium contamination. Atomic Absorption Spectroscopy was employed to test the water sample and series of standards. The water sample were prepared for testing by transferring 100.00 mL to a 500.00 mL volumetric flask to which 25 mL of a masking agent and 50 mL of a radiation buffer were added. The flask was made up to the mark with deionized water. Sample and standards were analyzed and peak areas recorded. From the data provide calculate the concentration of Uranium in the drinking. Calculate the result from each trial with appropriate uncertainty, the average with standard deviation, and the 95% confidence interval for the average value. Please note: No part marks will be given for your calculations, the marks in this question are from the results only. (15 marks) [U] (ppb) 0 Peak Area (a.u./sec) 0.0584 10.2585 Unknown Trial 1 2 3 Peak Area (a.u.)/sec 2.5245 3.4852 2.7582 3.3529 3.2652 10 UAWN 20 22.8754 4 30 5 29.8791 40.4289 40 Results Value Uncer. Unit 95% Confid. [U]: [U] [U] [U] [U]s [U]. b) Health Canada has set the Maximum Acceptable Concentration (MAC) of uranium at 0.020 mg/L. Consider the result obtained in 6a is the water sample safe to drink? (5 marks) Yes No

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