Question: A plot of concentration (C i , ppm) vs. absorbance (A) gave the following equation for the calibration curve: y = 0.05x + 0.003 ;

A plot of concentration (Ci , ppm) vs. absorbance (A) gave the following equation for the calibration curve:

y = 0.05x + 0.003 ; where y = absorbance and x = concentration Ci.

A solution of a 10.0 ppm standard gave the following absorbance for 5 replicate measurements:

0.512 0.551 0.449 0.495 0.507

Answer the following:

What is the calibration sensitivity for this analysis:

Calibratation sensitivity = ________ (report result to three decimal places with no units)

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