SHOW WORK CLEARLY, DO ALL PARTS AND USE SIGNIFICANT FIGURES! DO QUESTION 8 ONLY!!! IF YOU DO QUESTION 7 I WILL REPORT YOU
SHOW WORK CLEARLY, DO ALL PARTS AND USE SIGNIFICANT FIGURES! DO QUESTION 8 ONLY!!! IF YOU...
DO ALL PARTS OF QUESTION AND USE SIGNIFICANT FIGURES!!!!!!!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU HERE ARE THE QUESTIONS: INFORMATION TO USE FOR CALCULATING QUESTIONS: QUESTION 1 For all of the samples, [Fe3+10 = _M QUESTION 2 For sample 1, [SCN lo = _M. QUESTION 3 For sample 2, [SCN lo = _M For the prelaboratory assignment, you will need to calculate the initial concentrations of [Fe3+10 and [SCN-10 for samples 1-5 that you will use...
DO ALL PARTS OF QUESTION AND USE SIGNIFICANT FIGURES!!!!!!!!! IF YOU DO NOT DO THIS I WILL DOWNVOTE YOU HERE ARE THE QUESTIONS: INFO TO USE TO CALCULATE QUESTIONS: QUESTION 4 0.5 points Save Answer For sample 3, [SCN'Jo =M QUESTION 5 0.5 points Save Answer For sample 4, [SCNJ0 = M QUESTION 6 0.5 points Save Answer For sample 5, [SCNJ0 = _ M For the prelaboratory assignment, you will need to calculate the initial concentrations of [Fe5tlo and...
Show all work to receive full credit. Express answers to the correct number of significant figures. Note: Complete the table below by calculating the initial SCN and equilibrium Fe(SCN)2+ concentrations for each of the five standard solutions. In addition to the volume of KSCN indicated in the table below each solution contains 5.00 mL of Fe(NO,)a and sufficient 0.050 M HNO3 to produce a total volume of 25.00 mL of solution. 1. Fe3+ +SCN Fe(SCN)2+ 0.00200 M Molarity of KSCN...
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-]...
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....
5. A student does an experiment to determine the equili but at a higher temperature. ermine the equilibrium constant for the same reaction that you will study, Fe** (aq) + SCN (aq) FeSCN2+ (aq) The student prepares solution 1, by mixing 5. s Solution, by mixing 5.00 ml of 0.002 M Fe(NO2)2 solution with 5.00 mL of .00011M KSCN solution, heats the mixture, and finds that the equilibrium concentration of F and finds that the equilibrium concentration of FeSCN2+ in...
what is number 3 and 4? thank you. TT 3. A solution of [FeSCN2] is found to have 23% transmittance at 447 nm. If the molar absorption coefficient (e) is 4400 ( M cm) at y 447 nm, what is the concentration of [FeSCN] in the solution? Assume a 1 cm path length. (Show all work.) 4. A student mixes 5.00 mL of 0.0020 M Fe(NO.), with 3.00 mL of 0.0020 M KSCN Solution and 2.00 mL water at a...
You begin preparation of the calibration curve to measure absorbance vs concentration of FeSCN2+. To do so, you add 4.614 mL of 0.200 M Fe(NO3)3 to a cuvette and then directly add 108 µL of 0.001 M KSCN. What is the resulting concentration of FeSCN2+, assuming complete conversion of SCN- to FeSCN2+? Enter your answer in units of mM to four digits after the decimal.
4 please in part 1 gires us absorbance values for each sample , changes in concentration and absorbance will cause a curve 1. For each new concentration of FeSCN2+ a new absorbance will be plotted. 4. After completing Part A of this experiment, a student determines the slope of their calibration graph of absorbance versus (FeSCN to be 5140 M". In Part B, a student combines 2.00 mL of a 0.00200 M solution of KSCN with 5.00 mL of a...
As you will do in lab, a student prepared the following 2 mixtures and recorded their absorbances in a cuvette with a 1.00 cm path length Table 1.Absorbance of iron (Il) thiocyanate Volume, ml Fe3- 10.0 0.020 M2.64 x 10M Absorbance SCN 10.0 10.0 Mix #1 0.20 M Fel 10.01 0.769 0.495 1. Write the balanced equilibrium reaction of Fe(aq) with SCN (aq) to form [FeSCNJ (aq). 2. Write the equilibrium formation constant expression for the reaction (Kyexpression) Determination of...