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Suppose you generate the following spectroscopic data with five solutions of known concentration ...
Suppose you generate the following spectroscopic data with five solutions of known concentration. What is the...
Suppose you generate the following spectroscopic data with five solutions of known concentration. What is the slope of the linear regression line formed by these points? What is the intercept of the linear regression line? What is the concentration of a solution with an absorbance of 0.651? What is the concentration of a solution with an absorbance of 1.211?
The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M)...
The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) Absorbance 0.0161 0.1433 0.0322 0.2186 0.0644 0.6023 0.129 1.128 0.258 2.193 What is the slope of the linear regression line formed by these points? What is the concentration of a solution with an absorbance of 0.375? What is the concentration of a solution with an absorbance of 1.269?
The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) ...
The spectroscopic data in the table is generated with five solutions of known concentration. Concentration (M) Absorbance 0.0183 0.1375 0.0366 0.1650 0.0732 0.5256 0.146 1.038 0.293 2.306 What is the slope of the linear regression line formed by these points? ?= M−1 What is the intercept of the linear regression line? ?= What is the concentration of a solution with an absorbance of 0.383 ? concentration = M What is the concentration of a solution...
The spectroscopic data given in the table was generated for two different concentrations of a solution....
The spectroscopic data given in the table was generated for two different concentrations of a solution. Concentration Absorbance 0.0149 0.1301 0.1279 0.6013 What is the slope of the line formed by these points? What is the ‑intercept? What is the concentration of a solution with an absorbance of ? concentration:
The spectroscopic data given in the table was generated for two different concentrations of a solution....
The spectroscopic data given in the table was generated for two different concentrations of a solution. Concentration (M) Absorbance O.1367 0.6017 0.0141 0.1421 What is the slope of the line formed by these points? m3.7488 What is the y-intercept? b 0.0892 What is the concentration of a solution with an absorbance of 0.337
need help on these Suppose you obtained the following data from two standard solutions of known...
need help on these
Suppose you obtained the following data from two standard solutions of known concentrations using a UV-Vis spectroscope: Analysis # Conc. (mg/L) 8.00 20.00 Absorbance (at 255 nm) 0.160 0.390 What is the concentration (in mg/L) of an unknown solution with an absorbance of 0.200 at 255 nm 10 points)? The unknown solution contains the same analyte as the standard solution does (Assume a path length of 1cm). 10. You prepared a stock solution by dissolving a...
Please help! Will rate. You wish to measure the iron content of the well water on...
Please help! Will rate.
You wish to measure the iron content of the well water on the new property you are about to buy. You prepare a reference standard Felt solution with a concentration of 5.23 x 10 * M. You treat 10.0 mL of this reference with HNO, and excess KSCN to form a red complex and dilute the reference to 50.0 mL. The diluted reference is placed in a cell with a 1.00-cm light path. You then take...
thanks for the help Each of the following two data sets represents a straight line. 1....
thanks for the help
Each of the following two data sets represents a straight line. 1. Draw a graph (plot the data points and draw the best-fit-straight-line) for each data set (first line vs. second line for each data set). 2. Find the slope of the line-of-best-fit in if plot is linear. 3. Show the calculation of the slope of graph for the corresponding case in the space below 4. Determine the equations of the curve of best fit for...
Suppose you get the following data (note: these are not necessarily the data you will get...
Suppose you get the following data (note: these are not necessarily the data you will get or should expect - they are merely being used to make sure you understand the calculations involved). Construct a plot of absorbance (y-axis) versus concentration (x-axis) from the data above. Determine the slope of the best-fit line. Make sure that the graph goes through the origin (0,0). Since the path length is equal to 1 cm, the slope is equal to the molar absorptivity...
Preparing Dilute Solutions C1 V1 C2 V2 C1 is the concentration of the original concentrated solution...
Preparing Dilute Solutions C1 V1 C2 V2 C1 is the concentration of the original concentrated solution V1 is the volume of the original concentrated solution C2 is the concentration of the final dilute solution V2 is the volume of the final dilute solution A common solution unit is mol/L which can also be written as M. A solution that is 0.1 M NAOH has 0.1 moles Na OH for every liter of solution. Beer's Law Calibration Curve A colored solution...
Suppose you generate the following spectroscopic data with five solutions of known concentration. What is the slope of the linear regression line formed by these points? What is the intercept of the linear regression line? What is the concentration of a solution with an absorbance of 0.651? What is the concentration of a solution with an absorbance of 1.211?
The spectroscopic data given in the table was generated for two different concentrations of a solution. Concentration (M) Absorbance O.1367 0.6017 0.0141 0.1421 What is the slope of the line formed by these points? m3.7488 What is the y-intercept? b 0.0892 What is the concentration of a solution with an absorbance of 0.337
need help on these
Suppose you obtained the following data from two standard solutions of known concentrations using a UV-Vis spectroscope: Analysis # Conc. (mg/L) 8.00 20.00 Absorbance (at 255 nm) 0.160 0.390 What is the concentration (in mg/L) of an unknown solution with an absorbance of 0.200 at 255 nm 10 points)? The unknown solution contains the same analyte as the standard solution does (Assume a path length of 1cm). 10. You prepared a stock solution by dissolving a...
Please help! Will rate.
You wish to measure the iron content of the well water on the new property you are about to buy. You prepare a reference standard Felt solution with a concentration of 5.23 x 10 * M. You treat 10.0 mL of this reference with HNO, and excess KSCN to form a red complex and dilute the reference to 50.0 mL. The diluted reference is placed in a cell with a 1.00-cm light path. You then take...
thanks for the help
Each of the following two data sets represents a straight line. 1. Draw a graph (plot the data points and draw the best-fit-straight-line) for each data set (first line vs. second line for each data set). 2. Find the slope of the line-of-best-fit in if plot is linear. 3. Show the calculation of the slope of graph for the corresponding case in the space below 4. Determine the equations of the curve of best fit for...
Suppose you get the following data (note: these are not necessarily the data you will get or should expect - they are merely being used to make sure you understand the calculations involved). Construct a plot of absorbance (y-axis) versus concentration (x-axis) from the data above. Determine the slope of the best-fit line. Make sure that the graph goes through the origin (0,0). Since the path length is equal to 1 cm, the slope is equal to the molar absorptivity...
Preparing Dilute Solutions C1 V1 C2 V2 C1 is the concentration of the original concentrated solution V1 is the volume of the original concentrated solution C2 is the concentration of the final dilute solution V2 is the volume of the final dilute solution A common solution unit is mol/L which can also be written as M. A solution that is 0.1 M NAOH has 0.1 moles Na OH for every liter of solution. Beer's Law Calibration Curve A colored solution...
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