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Problem- The equation of line determined from a Beer's Law plot is y = 0.195x + 0.4. What is the resistance of an unknown water sample if the assumed concentration is 1.8ppm? (Express your answer in three significant figures)

a. 850 ohm

b. 1.00 x 103 ohm

c. 504 ohm

d. 400 ohm

e. 751 ohm

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