Use your own words to describe what is a reversible reaction and define dynamic equilibrium. What...
Use your own words to describe what is a reversible reaction and define dynamic equilibrium. What is the equilibrium Keg expression for the chemical reaction performed in this lab? (5 points)
2.Explain what is the purpose of using UV-vis spectroscopy for this particular experiment. What is the maximum wavelength in nm that the TA used to collect the absorbance value of Fe(SCN)2+ ? (5 points)
3.Use the absorbance and concentration data provided in the first part of the TA video to create the calibration plot of Fe(SCN)2+. The calibration plot will need to have the correct title of the graph, x and y labeling, linear equation, R- square value and slope displayed. You can plot the graph using Excel demonstrated in the TA video from this module. (10 points)
4. During the first part of the video performed by the TA, which reactant (Fe3+ or SCN") is in excess and which is the limiting reactant? What is the purpose of making one reactant in excess? (Connect to Le Chatelier's principle ) How will you know the concentration of Fe(SCN)2+?(10 points)
5. Construct your own ICE table using data and absorbance values provided in the TA video to calculate the concentrations at equilibrium. Use the ICE table to calculate Keq. Show your own calculation. What does a large Keg value mean? What does a small Key value mean?(10 points)
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Use your own words to describe what is a reversible reaction and
define dynamic equilibrium. What...
During the first part of the video performed by the TA, which reactant (Fe3+ or SCN-)...
During the first part of the video performed by the TA, which reactant (Fe3+ or SCN-) is in excess and which is the limiting reactant? What is the purpose of making one reactant in excess? (Connect to Le Chatelier's principle ) How will you know the concentration of Fe(SCN)2+ ?
9. Using the reaction below and mixture 1 volumes, a student mixes Foon with KSON n c equilibrium concentrations at 5.71 x 10 M and 3.71 x10+ M, respectively net absorbance of mixture l at 0.090....
9. Using the reaction below and mixture 1 volumes, a student mixes Foon with KSON n c equilibrium concentrations at 5.71 x 10 M and 3.71 x10+ M, respectively net absorbance of mixture l at 0.090. The calibration curve for the equilibrium reactions,-2635 x+0.014. Using the colormetet, she oin the Fe (aq SCN (aq)FescN (ad) a. Using the calibration curve, where y is equal to the absorbance Lapplying the Beer's Law: Absorbance slope (concentration), calaulate the eauilinium con b. Write...
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...
Explain what is the purpose of using UV-vis spectroscopy for this particular experiment. What is the...
Explain what is the purpose of using UV-vis spectroscopy for this particular experiment. What is the maximum wavelength in nm that the TA used to collect the absorbance value of Fe(SCN)2+?
the guiding questions. the max absorbance is 460. Guiding questions complex turque . Compare the molar...
the
guiding questions. the max absorbance is 460.
Guiding questions complex turque . Compare the molar absorptivity coefficients you obtained with SCN and Fe" as limiting reagents. Would you expect them to be the same? Why or why not? (Week 1) • The accepted molar absorptivity coefficient for FeSCN is 7.0x10' M'cm''. Find the bias and relative bias of your values and suggest possible sources of errors. (Week 1) • Which molar absorptivity coefficient will you use to calculate the...
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...
Determine the equilibrium concentration of FeSCN2+ in each solution. (Page below are the initial concentrations of...
Determine the equilibrium concentration of FeSCN2+ in each
solution. (Page below are the initial concentrations of FE3+ and
scn- for each solution )
Secondly, use stoichiometry to determine equilibrium FE3+ and
SCN -. ( concentration used for FE and KSCN are both 0.002M )
the absorbance of each standard in the same test tube used to blank the spectrophoto standards from least to most concentrated, rinsing with a small amount of the next sta tilling the test tube. Record absorbance...
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....
did I do chart/part 2 correctly? also is the ice table correct? it's already done but...
did I do chart/part 2 correctly? also is the ice table
correct? it's already done but I just want to double check. plz plz
help. I added the y=mx+b line too
2. Determine the equilibrium concentrations of each of the reactants and products in solution B-1 using the table provided below (ICE table). Fill in all blank values [Fe'l (SCN) [Fe(SCN)'1 Initial Concentration Change in Concentration 9.1E- 4 |-3.18E-5 18.8 E-4 2E-4 -3.18 E-5 2E-4 Equilibrium Concentration + 3.18 E-S...
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...
9. Using the reaction below and mixture 1 volumes, a student mixes Foon with KSON n c equilibrium concentrations at 5.71 x 10 M and 3.71 x10+ M, respectively net absorbance of mixture l at 0.090. The calibration curve for the equilibrium reactions,-2635 x+0.014. Using the colormetet, she oin the Fe (aq SCN (aq)FescN (ad) a. Using the calibration curve, where y is equal to the absorbance Lapplying the Beer's Law: Absorbance slope (concentration), calaulate the eauilinium con b. Write...
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...
the
guiding questions. the max absorbance is 460.
Guiding questions complex turque . Compare the molar absorptivity coefficients you obtained with SCN and Fe" as limiting reagents. Would you expect them to be the same? Why or why not? (Week 1) • The accepted molar absorptivity coefficient for FeSCN is 7.0x10' M'cm''. Find the bias and relative bias of your values and suggest possible sources of errors. (Week 1) • Which molar absorptivity coefficient will you use to calculate the...
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...
Determine the equilibrium concentration of FeSCN2+ in each
solution. (Page below are the initial concentrations of FE3+ and
scn- for each solution )
Secondly, use stoichiometry to determine equilibrium FE3+ and
SCN -. ( concentration used for FE and KSCN are both 0.002M )
the absorbance of each standard in the same test tube used to blank the spectrophoto standards from least to most concentrated, rinsing with a small amount of the next sta tilling the test tube. Record absorbance...
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....
did I do chart/part 2 correctly? also is the ice table
correct? it's already done but I just want to double check. plz plz
help. I added the y=mx+b line too
2. Determine the equilibrium concentrations of each of the reactants and products in solution B-1 using the table provided below (ICE table). Fill in all blank values [Fe'l (SCN) [Fe(SCN)'1 Initial Concentration Change in Concentration 9.1E- 4 |-3.18E-5 18.8 E-4 2E-4 -3.18 E-5 2E-4 Equilibrium Concentration + 3.18 E-S...
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...
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