What is the concentration of sodium in a river water sample, Ask an Expert

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Sodium is often determined by flame photometry. A flame photometer is zeroed with distilled water and the following readings taken with standard solutions.

[Na+] (ppm)
5.00
10.00
15.00
20.00
25.00
Response
43.4
78.6
104.0
121.0
132.9

What is the concentration of sodium in a river water sample that reads 115.0? the correct answer is: 17.9 ppm. how to obtain this answer since the plot is not linear.

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Category:- Chemistry
Reference No.:- M9678237

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