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1. The following data were collected from a colorimeter with solutions of manganese (II) chloride. [a]...
Beer's Law & Spectroscopy Practice Problems Show all work to receive full credit 100.0 1. The...
Beer's Law & Spectroscopy Practice Problems Show all work to receive full credit 100.0 1. The following data were collected from a colorimeter with solutions of manganese (I) chloride [a] Determine the absorbance of each of these standard Concentration (M) % Transmittance solutions, using A-log%T/100). 0.000 [b] Graph A vs. c. 0.010 96.6 [] By interpolating the graph, determine the concentration of an unknown manganese (II) chloride solution that transmits 0.030 90.2 85% of the light through this colorimeter 0.050...
1. A series of solutions, containing cobalt (I1) chloride were prepared with concentrations shown below. Using...
1. A series of solutions, containing cobalt (I1) chloride were prepared with concentrations shown below. Using PhET Simulation find the absorbance values corresponding to each solution at the preset value of wave length 549 nm, using 1 cm wide cuvette. Concentration of Co (II), mM 121 98.0 60.0 24.0 15.0 Absorbance Plot a calibration line Absorbance versus Concentration. From the graph determine the specific absorptivity. 2. Using the data you obtained from the graph in the previous problem determine the...
7. The Absorption Spectrum of Cobalt(II) Chloride Procedure Getting Started 1. Your laboratory instructor may ask...
7. The Absorption Spectrum of Cobalt(II) Chloride Procedure Getting Started 1. Your laboratory instructor may ask that you work in groups rather than alone. 2. Obtain directions from your laboratory instructor for discarding the solutions that you will use in'! this experiment. 3. Obtain instructions for using your spectrophotometer. 4. Obtain your unknown. Making the Measurements 1. Mark each of 7 dry 18 x 150-mm test tubes with one of a series of identification numbers running from 1 to 7....
Beer's Law & Spectroscopy Practice Problems Show all work to receive full credit 100.0 1. The following data were collected from a colorimeter with solutions of manganese (I) chloride [a] Determine the absorbance of each of these standard Concentration (M) % Transmittance solutions, using A-log%T/100). 0.000 [b] Graph A vs. c. 0.010 96.6 [] By interpolating the graph, determine the concentration of an unknown manganese (II) chloride solution that transmits 0.030 90.2 85% of the light through this colorimeter 0.050...
1. A series of solutions, containing cobalt (I1) chloride were prepared with concentrations shown below. Using PhET Simulation find the absorbance values corresponding to each solution at the preset value of wave length 549 nm, using 1 cm wide cuvette. Concentration of Co (II), mM 121 98.0 60.0 24.0 15.0 Absorbance Plot a calibration line Absorbance versus Concentration. From the graph determine the specific absorptivity. 2. Using the data you obtained from the graph in the previous problem determine the...
7. The Absorption Spectrum of Cobalt(II) Chloride Procedure Getting Started 1. Your laboratory instructor may ask that you work in groups rather than alone. 2. Obtain directions from your laboratory instructor for discarding the solutions that you will use in'! this experiment. 3. Obtain instructions for using your spectrophotometer. 4. Obtain your unknown. Making the Measurements 1. Mark each of 7 dry 18 x 150-mm test tubes with one of a series of identification numbers running from 1 to 7....
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