Standard Curve Test Tube Absorbance [Fe(SCN)2+] 1 0.073 1.0*10-5 2 0.18 2.0*10-5 3 0.212 3.0*10-5 4...
Standard Curve
| Test Tube | Absorbance | [Fe(SCN)2+] |
| 1 | 0.073 | 1.0*10-5 |
| 2 | 0.18 | 2.0*10-5 |
| 3 | 0.212 | 3.0*10-5 |
| 4 | 0.298 | 4.0*10-5 |
| 5 | 0.353 | 5.0*10-5 |
Finish the table by taking the absorbance of each solution and read the molarity from your standard curve.
| Test Tube | Absorbance | [Fe(SCN)2+] |
| 6 | 0.132 | |
| 7 | 0.238 | |
| 8 | 0.341 |
Please show work!! Thank you!!
Homework Answers
![Y = 6780 X +00L18 - equation of line X Concentration y Absorbance, for absonbance 0.132 0.132 -0.0198 = x = [x= 1.6548X106] =](http://img.homeworklib.com/questions/6390ce50-032b-11ec-8581-5b754244bf73.png?x-oss-process=image/resize,w_560)
Add Answer to:
Standard Curve
Test Tube
Absorbance
[Fe(SCN)2+]
1
0.073
1.0*10-5
2
0.18
2.0*10-5
3
0.212
3.0*10-5
4...
help with finding the equilibrium of [Fe(SCN)^2+] morality value Equilibrium Solutions Data 1. Use your "Absorbance...
help with finding the equilibrium of [Fe(SCN)^2+] morality value
Equilibrium Solutions Data 1. Use your "Absorbance of Solution" values and the graph you made above to interpolate the "Equilibrium [Fe(SCN)]" molarity values. 2. Calculate both the "Initial [Fe ]" and the "Initial [SCN']" molarity values using then dilution equation CiVi C2V2. 3. Calculate the "Equilibrium [Fe ]" molarity values by subtracting the "Equilibrium [Fe(SCN) " molarity values from the "Initial [Fe'" molarity values. 4. Calculate the "Equilibrium [SCN']" molarity values...
Standard solutions of [Fe(SCN)2-] were prepared and their absorbance measured in order to study the Keq...
Standard solutions of [Fe(SCN)2-] were prepared and their absorbance measured in order to study the Keq for the reaction Fe3+ + SCN- <=> FeNCS2+ A plot of absorbance verses concentration of [Fe(SCN)2-] is shown below. To determine the Keq for the above reaction, 10.00 mL of 0.00200 M Fe(NO3)3 solution is mixed with 5.00 mL of 0.0020 M KSCN and diluted with 5.0 mL 0f 0.10 M HNO3. The absorbance of this red solution is found to be 0.322....
Data Test Tube el=A_ 0.370 C X154 = 3700 10158184 (10.047 3100 5 1.2703 YID Absorbance...
Data Test Tube el=A_ 0.370 C X154 = 3700 10158184 (10.047 3100 5 1.2703 YID Absorbance [FeSCN ] at equilibrium 0.047 A 1o 3x105 0.198 A 5.358los Oo 303 A 8.19x105 0.425 A 0. 560 A 1.51x10-9 Test Tube 6(standard, 1 x 106m). Absorbance O: 3:04. 1-3X10 Xool Results Initial Moles Moles at Equilibrium Fe* SCN Fe(SCN)2 Fe IX 105 2x106 11.3x107 1x100 4x106 15.358 lot 1x 105 68106 8.19x107 1x10.5 8X 106 1.15X106 5 | 1x10.5 1x10-5 1.51x106 0.196...
Need help finding equilibrium molarity Table 1: Calibration Curve Data (4 pts. total) Tube Vol. of...
Need help finding equilibrium molarity
Table 1: Calibration Curve Data (4 pts. total) Tube Vol. of 0.200M Volume of Volume of Total Vol. Fe(NO3)3 0.00200M KSCN 0.500M HNO; Smi 10.5 mL 150 mL zob 20.5ml 19.98m2 J 2 5.00mL lll ML 14.05 mL 20.16 mil 5.00 ml 1.5 mL 13.5 mL 20 ml 4 5.00mL 2.0 mL 13.01 mL 20.01 mL 15 500mL I 2.50 ML 12.5 mL 20 ml Table 2: Calibration Curve Calculations and Percent Transmittance Recorded (1/2...
values used for table 2 how do you do the Ice tables??? Experiment V. Equilibrium Constant...
values used for table 2
how do you do the Ice tables???
Experiment V. Equilibrium Constant Lab Report ( 50 pts) Calibration Curve 1. Record the absorbance for each of the standard solutions in the table below. Calculate the concentration of FeSCN)" in each of the standard solutions and record the values in the table below. Show a sample calculation (for A2) of your work in the space below the table. Solution Absorbance [Fe(SCN)" A-1 A-2 A-3 0.000 0.390 0.535...
Part I. Prepare and Test Standard Solutions 1. Obtain and wear goggles. 2. Label four small...
Part I. Prepare and Test Standard Solutions 1. Obtain and wear goggles. 2. Label four small beakers 1-4. Obtain small volumes of 0.200 M Fe(NO3)3, 0.0020 M SCN-, and distilled water. Prepare four solutions according to the chart below Use graduated cylinders to measure the solutions. Mix each solution thoroughly Measure and record the temperature of either of the solutions - remember that the equilibrium constant (Kea) depends on temperature. Don't cross-contaminate the solutions. Technical note 1: The Fe(NO3)3 solutions...
please help answer questions for mixture 1 AND mixture 2 thank you! Table 23.1 Test Tube...
please help answer questions for mixture 1 AND mixture 2 thank
you!
Table 23.1 Test Tube Number 1 2 3 4 5 5,00 1.00 5.00 2.00 Volume Fe(NO), solution (ml.) Volume KSCN solution (ml.) Volume H,O (ml.) 5.00 3.00 2.00 5.00 4.00 5.00 5.00 0.00 4.00 3.00 1.00 Mixture 2 3 4 5 Absorbance 0.079 0.165 0.246 0.311 0.400 In order to convert the absorbance values provided below into equilibrium concentrations of FeSCN?, you will need to know the slope...
Table A. Preparation of Standard solutions of FeSCN2+ 1.0 M HNO3 0.002 M 0.200 M Solution...
Table A. Preparation of Standard solutions of FeSCN2+ 1.0 M HNO3 0.002 M 0.200 M Solution KSCN (mL) Fe(NO3)3 (mL) 0.5 5 [FeSCN2+] (mol/L)* 1 4.0x10^-5 Add 1.0 M 2 1.0 5 8.0x10^-5 HNO3 3 1.5 5 1.2x10^-10 4 2.0 5 1.6x10-4 to each to adjust the volume to 25 mL. 5 2.5 5 2.0x10-4 * Calculate the concentrations of FeSCN2+ in each beaker, assuming that all SCN-ions exist as FeSCN2+. In other words, [FeSCN2+] (in Soln 1) = [SCN-]...
Amount of Substrate (9) Test Tube Number 1 2 3 4 5 1.0 1.0 1.0 1.0...
Amount of Substrate (9) Test Tube Number 1 2 3 4 5 1.0 1.0 1.0 1.0 1.0 Number of Molecules of Product Formed per Minute (x10%) 145 145 145 145 145 2 3 4 pH7 pH7 pH7 PH pH7 37°C 0.5 g substrate 1.0 9 substrate 2.0 g substrate 4.0 9 substrate 8.0 g substrate 4 Information Reset A 2 MacBook Air QUESTION 3 Set the test tubes to pH 3, 5, 7, 9, and 11 and use 1.0 g...
please correct me If I did anything wrong. im very confused on this. • Determining k...
please correct me If I did anything wrong. im very confused on
this.
• Determining k in Beer's Law 2. Determining the equilibrium constant Test Tube No. Absorbance Test Tube No. Absorbance 0,060 이79 0.253 0319 0.400 0.120 0.268 0.361 0.461 0.695 Post Laboratory Questions 1. Complete the following table and calculate k-value for the Beer's Law. All concentrations should be in M. [Fe(SCN)2) Absorbance CA Test Tube No. Diluted Fe(NO3)2 (mL) 0 . 2 3 4 s Reference 1.0...
help with finding the equilibrium of [Fe(SCN)^2+] morality value
Equilibrium Solutions Data 1. Use your "Absorbance of Solution" values and the graph you made above to interpolate the "Equilibrium [Fe(SCN)]" molarity values. 2. Calculate both the "Initial [Fe ]" and the "Initial [SCN']" molarity values using then dilution equation CiVi C2V2. 3. Calculate the "Equilibrium [Fe ]" molarity values by subtracting the "Equilibrium [Fe(SCN) " molarity values from the "Initial [Fe'" molarity values. 4. Calculate the "Equilibrium [SCN']" molarity values...
Data Test Tube el=A_ 0.370 C X154 = 3700 10158184 (10.047 3100 5 1.2703 YID Absorbance [FeSCN ] at equilibrium 0.047 A 1o 3x105 0.198 A 5.358los Oo 303 A 8.19x105 0.425 A 0. 560 A 1.51x10-9 Test Tube 6(standard, 1 x 106m). Absorbance O: 3:04. 1-3X10 Xool Results Initial Moles Moles at Equilibrium Fe* SCN Fe(SCN)2 Fe IX 105 2x106 11.3x107 1x100 4x106 15.358 lot 1x 105 68106 8.19x107 1x10.5 8X 106 1.15X106 5 | 1x10.5 1x10-5 1.51x106 0.196...
Need help finding equilibrium molarity
Table 1: Calibration Curve Data (4 pts. total) Tube Vol. of 0.200M Volume of Volume of Total Vol. Fe(NO3)3 0.00200M KSCN 0.500M HNO; Smi 10.5 mL 150 mL zob 20.5ml 19.98m2 J 2 5.00mL lll ML 14.05 mL 20.16 mil 5.00 ml 1.5 mL 13.5 mL 20 ml 4 5.00mL 2.0 mL 13.01 mL 20.01 mL 15 500mL I 2.50 ML 12.5 mL 20 ml Table 2: Calibration Curve Calculations and Percent Transmittance Recorded (1/2...
values used for table 2
how do you do the Ice tables???
Experiment V. Equilibrium Constant Lab Report ( 50 pts) Calibration Curve 1. Record the absorbance for each of the standard solutions in the table below. Calculate the concentration of FeSCN)" in each of the standard solutions and record the values in the table below. Show a sample calculation (for A2) of your work in the space below the table. Solution Absorbance [Fe(SCN)" A-1 A-2 A-3 0.000 0.390 0.535...
Part I. Prepare and Test Standard Solutions 1. Obtain and wear goggles. 2. Label four small beakers 1-4. Obtain small volumes of 0.200 M Fe(NO3)3, 0.0020 M SCN-, and distilled water. Prepare four solutions according to the chart below Use graduated cylinders to measure the solutions. Mix each solution thoroughly Measure and record the temperature of either of the solutions - remember that the equilibrium constant (Kea) depends on temperature. Don't cross-contaminate the solutions. Technical note 1: The Fe(NO3)3 solutions...
please help answer questions for mixture 1 AND mixture 2 thank
you!
Table 23.1 Test Tube Number 1 2 3 4 5 5,00 1.00 5.00 2.00 Volume Fe(NO), solution (ml.) Volume KSCN solution (ml.) Volume H,O (ml.) 5.00 3.00 2.00 5.00 4.00 5.00 5.00 0.00 4.00 3.00 1.00 Mixture 2 3 4 5 Absorbance 0.079 0.165 0.246 0.311 0.400 In order to convert the absorbance values provided below into equilibrium concentrations of FeSCN?, you will need to know the slope...
Table A. Preparation of Standard solutions of FeSCN2+ 1.0 M HNO3 0.002 M 0.200 M Solution KSCN (mL) Fe(NO3)3 (mL) 0.5 5 [FeSCN2+] (mol/L)* 1 4.0x10^-5 Add 1.0 M 2 1.0 5 8.0x10^-5 HNO3 3 1.5 5 1.2x10^-10 4 2.0 5 1.6x10-4 to each to adjust the volume to 25 mL. 5 2.5 5 2.0x10-4 * Calculate the concentrations of FeSCN2+ in each beaker, assuming that all SCN-ions exist as FeSCN2+. In other words, [FeSCN2+] (in Soln 1) = [SCN-]...
Amount of Substrate (9) Test Tube Number 1 2 3 4 5 1.0 1.0 1.0 1.0 1.0 Number of Molecules of Product Formed per Minute (x10%) 145 145 145 145 145 2 3 4 pH7 pH7 pH7 PH pH7 37°C 0.5 g substrate 1.0 9 substrate 2.0 g substrate 4.0 9 substrate 8.0 g substrate 4 Information Reset A 2 MacBook Air QUESTION 3 Set the test tubes to pH 3, 5, 7, 9, and 11 and use 1.0 g...
please correct me If I did anything wrong. im very confused on
this.
• Determining k in Beer's Law 2. Determining the equilibrium constant Test Tube No. Absorbance Test Tube No. Absorbance 0,060 이79 0.253 0319 0.400 0.120 0.268 0.361 0.461 0.695 Post Laboratory Questions 1. Complete the following table and calculate k-value for the Beer's Law. All concentrations should be in M. [Fe(SCN)2) Absorbance CA Test Tube No. Diluted Fe(NO3)2 (mL) 0 . 2 3 4 s Reference 1.0...
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