Chemistry Question: CHEM 152 PL#2.2a

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Date Posted: 7/5/2008 4:00:52 PM Status: Closed

CHEM 152 PL#2.2a

Course	Textbook	Chapter	Problem
General Chemistry	N/A	N/A	N/A

Question Details:

Consider the data below for a different set of standard solutions:

Sample	[Ferroin] (M)	Absorbance
Standard 1	(1.00 10^-5 M)	0.121
Standard 2	(2.25 10^-5 M)	0.278
Standard 3	(3.50 10^-5 M)	0.424
Standard 4	(4.75 10^-5 M)	0.573
Standard 5	(6.00 10^-5 M)	0.728

a) Using Excel, plot the Absorbance vs. [ferroin] (M) and find the equation for the calibration curve. “y = mx + b” corresponds to "Abs = m*[ferroin] + b". Report the slope (m) and y-intercept (b).

m (3 significant figures) =

WebAssign will check your answer for the correct number of significant figures.

b (2 significant figures) =

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CHEM 152 PL#2.2a

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