I. You currently have a linear regression model y=ax+b where y is actually equal to ln A , with A representing the absorbance of the solution. Substitute ln A in for Y and solve for A:
A. Now determine the absorbance after:
B. How long will the reaction need to run to generate an absorbance
of:
C. What is the y intercept of this equation and what is its
significance?
II. You have previously determined the half-life of this reaction.
Use that number to write a base 1/2 exponential equation which
expresses absorbance in terms of time (your answer to C above may
also prove helpful):
A. Use your calculator to show that this equation and the base e equation from part I are graphically equivalent:
B. Use your exponential and log properties to algebraically prove
that these two are equivalent: