Question

Question 1 12.5 points n ce the ston 159 m nga 1.00 om wette. What w e the The absorbance of an onthocyanate solution containing 0.002 mg Fame was reported dited to twice its original volume and placed in 5 cm cuvette? write awer to three decal places

Answer 1

We know, A = {*/*C Given. A = 1.59, 1 = 1cm, C=0.002 g/mL Then E = 1.59/(1*0.002) = 795 Now, when we dilute the solution twice of the original then concentration will be half of the original. Hence, C = 0.001 g/mL and path length = 5cm, Absorbance of this solution A = 795 * 5 * 0.001 = 3.985 ....(3 decimal places) Please note that the image is not clear and hence if I have taken any wrong value the answer may come different. So in that case please let me know correct vlaues in the comment section and I will update my answer accordingly.