I. You have just devloped a linear equation expressing absorbance of solution in terms of the concentration of CuSO4.
A. Use this equation to determine the absorbance of a 0.40M CuSO4 concentration:
B. Also determine the concentration of a solution with an absorbance of .70:
II. The experiment refers to the formula A=2-log(%T), where A is the amount of light absorbed and T is the percent transmitted:
A. Since your regression line (Beer's law) and this formula both equal A. They can easily be set equal to each other. Do that here please:
B. Solve this equation for x to express concentration as a function
of light transmittance:
1. Determine the concentration of a CuSO4 solution which transmits 70% of the light passing through a sample in a colorimeter:
2. If a CuSO4 solution transmits 24% of incident light, what is it's concentration?