What is the slope of the standard curve?
Absorbance Concentration (M)
0.330 6.00 x 10-4
0.264 4.80 x 10-4
0.198 3.60 x 10-4
0.132 2.40 x 10-4
0.0660 1.2 x 10-4
What is the slope of the standard curve?
The slope is the tangent of the angle formed by the line with the axes.
0.330 6.00 x 10-4
0.264 4.80 x 10-4
0.198 3.60 x 10-4
0.132 2.40 x 10-4
0.0660 1.2 x 10-4
tan angle = delta A/delta C. Example is
0.330-0.0660 = delta A
(6E-4) - (1.2E-4) = delta C