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![Anowa 2 As frescn²t] is proportional to [SEN] So, [feseNe can be calculated asi- Presen?] . molarity of K KSCN X volume of Ks](http://img.homeworklib.com/questions/3bd2f9a0-2c70-11eb-af6f-334961a17a0d.png?x-oss-process=image/resize,w_560)
![Answery Pe3t + SEN & Presenzer ke rescN21] [Fe3+] [sent] from absorbance data 0.118 . m = 0.118 -0.0483 - 10.000d 3 M7 2417.5](http://img.homeworklib.com/questions/3ca1aa80-2c70-11eb-a07d-2fe985fa2aba.png?x-oss-process=image/resize,w_560)
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2. In Part A of this experiment, you prepare five FeSCN solutions (one that is just...
The reaction for the formation of the diamine-silver son is as follows: A® LÀ NHÀ ANH...
The reaction for the formation of the diamine-silver son is as follows: A® LÀ NHÀ ANH Nha La Write the equilibrium constant expression for this reaction b. An experiment was carried out to determine the value of the equilibrium constant for the shove reaction Show ICE table Total moles of Ag present Total Moles of NH, present Measured AgNH,) a equilibrium Total solution Volume 3.6 x 10 moles 6.9 x 10 moles 3.4 x 10- moles 100 ml i Calculate...
1. For the solutions that you will prepare in Step 7 of Part I, calculate the...
1. For the solutions that you will prepare in Step 7 of Part I, calculate the [FeSCN) using the equation CVC V2. Presume that all of the SCN ions react and therefore in Part of the experiment, mol of SCN=mol of FeSCN Record these values in the table below and in me data table for part / Standard solution. Beaker number [FeSCN2 2. Define equilibrium constant Keg. 3. Write the equilibrium constant expressions for each of the following chemical reactions:...
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...
equilibrium help!! What is the equilibrium constant for the reaction CO(g) + 3 H2(g) - CH4(g)...
equilibrium help!!
What is the equilibrium constant for the reaction CO(g) + 3 H2(g) - CH4(g) + H2O(g) if at 20 °C the equilibrium molar concentrations are [CO] -0.613, [H2] = 1.839, (CH4) = 0.387, and [H20) - 0.387? Format Β Ι Ο The reaction for the formation of the diamine-silver ion is as follows: Ag (aq) + 2NH3(aq) + Ag(NH3)2(aq) a. Write the equilibrium constant expression for this reaction. for the above b. An experiment was carried out to...
Part II. Determination of Unknown SCN concentration. 0.387 9=3663.24-0.0427 1. Use the absorbance you measured for...
Part II. Determination of Unknown SCN concentration. 0.387 9=3663.24-0.0427 1. Use the absorbance you measured for part II and the equation you obtained from part I to calculate the concentration of FeSCN In the cuvette. Show your calculations with formulas and report the result. 2. Since KSCR was limiting reactant, you may consider amounts of FeSCN and SCN to be the same. KSCN was diluted from the original unknown concentration in the bottle (c1) when the required by the protocol...
are theses correct? please correct me if they are not. Results Fe Test Tube 2: FeSCN...
are
theses correct?
please correct me if they are not.
Results Fe Test Tube 2: FeSCN (aa) SCN () Fe Chemical equation: Explanation: The equilibrium shifted toward the increased the due to the addition of Fe(NO,)) because it of the Test Tube 3: FESCN 0) SCN () (as Chemical equation: Fe(ag) Explanation: Test Tube 4: Chemical equation: Fe(agk FeSCN( (aq)h Explanation: Test Tube 5: Chemical equation: Fe"( SCN () FESCN 3+ + (sq) Explanation: Test Tube 6 Chemical equation: Fe(a...
What's the concentration of [FeSCN2+] using limiting reactant theory and equation? For each test tube solution...
What's the concentration of [FeSCN2+] using limiting
reactant theory and equation?
For each test tube solution enter the initial concentration of Fe+ and SCNthe equilibrium concentration of FeSCN2: into the ICE table given. Complete entries for the rest of the table and calculate the K value for each of the tables. The values of K should be confined to a narrow range to reflect constancy. Comment on the quality of your work in this regard and calculate the average K....
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-]...
fill out the chart Lab Notebook Initial concentrations of Feº and SCN KSCN, mL Di water,...
fill out the chart
Lab Notebook Initial concentrations of Feº and SCN KSCN, mL Di water, mL (Fe) Solution Fe(NO3). mL M [SCN] initia M Spectrophotometric determination of (FeSCN) (Calibration curve: A =1269.6c) Solution Measured absorbance Calculated (FeSCN).M alvo Instructions In separate test tubes, make the 5 solutions according to the table below. Then stir each solution. Solution Fe(NO3)3, mL KSCN, mL 2.00 x 10M 2.00 x 10M Dl water, ml 5.0 5.0 0.0 5.0 4.0 1.0 5.0 3.0 2.0...
Table A. Preparation of Standard solutions of FeSCN2+ 0.002 M 0.200 M 1.0 M HNO3 [FeSCN2+]...
Table A. Preparation of Standard solutions of FeSCN2+ 0.002 M 0.200 M 1.0 M HNO3 [FeSCN2+] (mol/L)* Solution KSCN (mL) Fe(NO3)3 (mL) 1 0.5 5 Add 1.0 M 1.0 5 N HNO3 3 1.5 5 4 2.0 5 to each to adjust the volume to 25 mL. 5 2.5 5 * Calculate the concentrations of FeSCN2+ in each beaker, assuming that all SCN-ions exist as FeSCN2+. In other words, [FeSCN2-] (in Soln 1) = [SCN-] (in Soln 1). The same...
The reaction for the formation of the diamine-silver son is as follows: A® LÀ NHÀ ANH Nha La Write the equilibrium constant expression for this reaction b. An experiment was carried out to determine the value of the equilibrium constant for the shove reaction Show ICE table Total moles of Ag present Total Moles of NH, present Measured AgNH,) a equilibrium Total solution Volume 3.6 x 10 moles 6.9 x 10 moles 3.4 x 10- moles 100 ml i Calculate...
1. For the solutions that you will prepare in Step 7 of Part I, calculate the [FeSCN) using the equation CVC V2. Presume that all of the SCN ions react and therefore in Part of the experiment, mol of SCN=mol of FeSCN Record these values in the table below and in me data table for part / Standard solution. Beaker number [FeSCN2 2. Define equilibrium constant Keg. 3. Write the equilibrium constant expressions for each of the following chemical reactions:...
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...
equilibrium help!!
What is the equilibrium constant for the reaction CO(g) + 3 H2(g) - CH4(g) + H2O(g) if at 20 °C the equilibrium molar concentrations are [CO] -0.613, [H2] = 1.839, (CH4) = 0.387, and [H20) - 0.387? Format Β Ι Ο The reaction for the formation of the diamine-silver ion is as follows: Ag (aq) + 2NH3(aq) + Ag(NH3)2(aq) a. Write the equilibrium constant expression for this reaction. for the above b. An experiment was carried out to...
Part II. Determination of Unknown SCN concentration. 0.387 9=3663.24-0.0427 1. Use the absorbance you measured for part II and the equation you obtained from part I to calculate the concentration of FeSCN In the cuvette. Show your calculations with formulas and report the result. 2. Since KSCR was limiting reactant, you may consider amounts of FeSCN and SCN to be the same. KSCN was diluted from the original unknown concentration in the bottle (c1) when the required by the protocol...
are
theses correct?
please correct me if they are not.
Results Fe Test Tube 2: FeSCN (aa) SCN () Fe Chemical equation: Explanation: The equilibrium shifted toward the increased the due to the addition of Fe(NO,)) because it of the Test Tube 3: FESCN 0) SCN () (as Chemical equation: Fe(ag) Explanation: Test Tube 4: Chemical equation: Fe(agk FeSCN( (aq)h Explanation: Test Tube 5: Chemical equation: Fe"( SCN () FESCN 3+ + (sq) Explanation: Test Tube 6 Chemical equation: Fe(a...
What's the concentration of [FeSCN2+] using limiting
reactant theory and equation?
For each test tube solution enter the initial concentration of Fe+ and SCNthe equilibrium concentration of FeSCN2: into the ICE table given. Complete entries for the rest of the table and calculate the K value for each of the tables. The values of K should be confined to a narrow range to reflect constancy. Comment on the quality of your work in this regard and calculate the average K....
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-]...
fill out the chart
Lab Notebook Initial concentrations of Feº and SCN KSCN, mL Di water, mL (Fe) Solution Fe(NO3). mL M [SCN] initia M Spectrophotometric determination of (FeSCN) (Calibration curve: A =1269.6c) Solution Measured absorbance Calculated (FeSCN).M alvo Instructions In separate test tubes, make the 5 solutions according to the table below. Then stir each solution. Solution Fe(NO3)3, mL KSCN, mL 2.00 x 10M 2.00 x 10M Dl water, ml 5.0 5.0 0.0 5.0 4.0 1.0 5.0 3.0 2.0...
Table A. Preparation of Standard solutions of FeSCN2+ 0.002 M 0.200 M 1.0 M HNO3 [FeSCN2+] (mol/L)* Solution KSCN (mL) Fe(NO3)3 (mL) 1 0.5 5 Add 1.0 M 1.0 5 N HNO3 3 1.5 5 4 2.0 5 to each to adjust the volume to 25 mL. 5 2.5 5 * Calculate the concentrations of FeSCN2+ in each beaker, assuming that all SCN-ions exist as FeSCN2+. In other words, [FeSCN2-] (in Soln 1) = [SCN-] (in Soln 1). The same...
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