(Solution) - Standard addition graph Students performed an experiment like that in -(2025 Original AI-Free Solution)

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Academic Level: Undergrad. (yrs 3-4)

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Standard addition graph. Students performed an experiment like that in Figure 5-7 in which each flask contained 25.00 mL of serum, varying additions of 2.640 M NaCl standard, and a total volume of 50.00 mL.

(a) Prepare a standard addition graph and find [Na+] in the serum.
(b) Find the standard deviation and 95% confidence interval for [Na+].