2. You are provided 50.0 mL of the 0.200M CoCl2 stock solution. With this stock solution...
Font Paragraph 2. You are provided 50.0 mL of the 0.200M CoCl2 stock solution. With this stock solution prepare 5 dilutions to produce a series of known concentration solutions. Show all dilution calculations below. Type or draw the equations and solution concentrations. (10) 3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known Concentration % Transmittance 0.20 0 0.18 13 0.16 16 0.14 20.1 0.12 26 4. Type your concentrations into the data table...
3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known Concentration % Transmittance 0.20 0 0.18 13 0.16 0.14 16 20.1 26 0.12 4. Type your concentrations into the data table below. Generate a graph of your dilution data from part 2 above. Absorbance Solution Concentration OM (blank) 4 When finished, start calculating the data below, based on your dilution data from part 2. Perform the best linear regression using Graphing calculator or Excel...
3. Utilizing the data below to calculate the absorbances of your dilutions from part 2. Known Concentration % Transmittance 0.20 0 0.18 13 0.16 0.14 16 20.1 26 0.12 4. Type your concentrations into the data table below. Generate a graph of your dilution data from part 2 above. Absorbance Solution Concentration OM (blank)
Analysis of Co?by Spectrophotometry 3. Utilizing the data below to calculate the absorbances of your dilutions from part 2 % Transmittance This exam involves using best practices to analyze a Counknown solution. Multiple working standard solutions will be prepared bydiluting a stock solution of Cocle The 0.200M stock solution will be the highest concentration standard it has been analyzed to give the table (below) of absorbances as a function of wavelength. This analysis will be done by spectrophotometry. Measurements are...
Lab 5: Additional Dilution Problems You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 4 Std 1 12 Std 2 6 Std...
You only have 150 pl stock solution that contains 100 mgml of protein. You want to make a set of standards with the concentrations shown below. You need a minimum of 500 l of each standard left after you have finished all your dilutions. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below include the final dilution of the standard as compared to the original stock concentration and the final...
You have a stock solution that contains 24 mg/ml of protein. You want to make a set of standards with the following concentrations: 12 mg/ml, 6 mg/ml, 3 mg/ml and 1.5 mg/ml. You need a minimum of 500 ul of each standard after all dilutions are completed. Using the technique of serial dilution, explain how you would make your standards by filling in the chart below. Std 1 Std 2 Std 3 Std 4 concentration (mg/ml) 12 6 3...
You are provided with a stock solution with a concentration of 1.0x10-5 M. You will be using this to make two standard solutions via serial dilution. 1. Perform calculations to determine the volume of the 1.0x10-5 M stock solution needed to prepare 10.0 mL of a 2.0x10-6 M solution. Perform calculations to determine the volume of the 2.0x10-6 M solution needed to prepare 10.0 mL of a 5.0x10-7 M solution. You are welcome to do the calculations in your notebook...
Question 4 2 pts During this week's experiment, a student was provided with a stock solution of FD&C Red 40 dye that was 0.381 mM. Following the procedure in the lab manual, she created Solution #2 by pipetting 19 mL of Solution #1 to a 25 mL volumetric flask, then diluted to the calibration line with Dl water. What is the concentration of Solution #2 in mM? Note: The units of mM are used for grading purposes, and are not...
Based on this data, I find it hard to the calculations and analysis
and discussion
Beer's Law Calculations: A. Dilution Calculations 1. Use the actual mass of cobalt(II) nitrate hexahydrate you used to calculate the concentration of your stock solution. 2. Calculate the concentration of your diluted solutions. The easiest way to do this is with the equation MiV2-M2V2. Show the work for the calculation of the concentration of at least one of your dilute solutions. 3. Make a table...