Suppose a student generated a calibration curve of absorbance versus concentrati

Question

Suppose a student generated a calibration curve of absorbance versus concentration of Pb(NO3)2 and found the slope to be 2.42 M1-. Assuming that the calibration curve passes through the origin, what absorbance would be recorded for a solution with a Pb(NO3)2 concentration of 0.335 M? Suppose a student generated a calibration curve of absorbance versus concentration of Pb(NO3)2 and found the slope to be 2.42 M1-. Assuming that the calibration curve passes through the origin, what absorbance would be recorded for a solution with a Pb(NO3)2 concentration of 0.335 M?

Explanation / Answer

A = EbC

So from the first data, we can actually know that 2.42 M1 is EbC (where 2.42 = Eb) b is usually 1 cm, so E = 2.42.

Now all you to do is substitute the concentration in the equation:

A = 2.42 * 0.335

A = 0.8107

Hope this helps.

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