After adding the solvent, mix the solution, and you have your desired solution. You then realized that you actually wanted a 1.5 M solution and will have to now dilute your stock solution, this can be easily achieved by adding more solvent (water). What would be the final volume of the solution in order to obtain a concentration of 1.5 M? How much water would you need to add? 5.) Problem: A chemist uses UV-vis spectrophotometry and Beer's Law to determine the concentration of a Col2 solution. a.) A stock solution of the Col2 solution needs to be prepared by the chemist. She wants to prepare a 500 mL of a 2.5 M solution. How many grams of Col2 will need to be added to the volumetric flask in order to prepare this solution? b.) In order to find the molar absorptivity, the chemist needs to prepare a set of standards. She decides to make four standard solution (listed below). If she wanted 100 mL of each solution, how much of the stock solution in L) needs to be added to each of the 100 mL volumetric flask in order to obtain the desired concentration via dilutions. (Need 4 answers for solution A-D) Solution Absorbance 0.34 Concentration (M) 0.25 0.75 1.25 1.02 1.70 1.75 2.38 c.) Create a detailed procedure indicating how the student can make all five solution listed above. You have the following materials present to work with. After adding the solvent, mix the solution, and you have your desired solution. You then realized that you actually wanted a 1.5 M solution and will have to now dilute your stock solution, this can be easily achieved by adding more solvent (water). What would be the final volume of the solution in order to obtain a concentration of 1.5 M? How much water would you need to add? 5.) Problem: A chemist uses UV-vis spectrophotometry and Beer's Law to determine the concentration of a Col2 solution. a.) A stock solution of the Col2 solution needs to be prepared by the chemist. She wants to prepare a 500 mL of a 2.5 M solution. How many grams of Col2 will need to be added to the volumetric flask in order to prepare this solution? b.) In order to find the molar absorptivity, the chemist needs to prepare a set of standards. She decides to make four standard solution (listed below). If she wanted 100 mL of each solution, how much of the stock solution in L) needs to be added to each of the 100 mL volumetric flask in order to obtain the desired concentration via dilutions. (Need 4 answers for solution A-D) Solution Absorbance 0.34 Concentration (M) 0.25 0.75 1.25 1.02 1.70 1.75 2.38 c.) Create a detailed procedure indicating how the student can make all five solution listed above. You have the following materials present to work with