1.) Which solutions should you have used to make your Beer's Law Plot?2.) What property of the product of your reaction allowed you to use visiblespectroscopy to analyze your results?3.) Using your absorbance value from Equilibrium mixture 5 (E5), showyour calculation for the concentration of FeSCN^2+ in sample E5. (Provided picture for the resources) Part 2: Preparation of equilibrium mixtures1. Record the exact concentration of the 2.0x10-3M Fe(NO3)3 solution on your data sheet.2. Label six test tubes "E1" through "E6" and place in test tube rack. You can use a paperlabeled E1-E6 under the test tube rack if necessary.3. Transfer exactly 40 drops of 2.0x10-3M Fe(NO3)3 into the test tube labeled E1-E6.4. Transfer the exact amount of 2.0 x 10-3 M solution NaSCN solution listed table below intoeach of the corresponding test tubes.5.0 drops10.0 drops15.0 drops20.0 drops30.0 drops40.0 dropsE1E4E2E5ЕЗE65. Transfer the exact amount distilled water listed table below into each of the correspondingtest tubes. When finished all test tubes should have the same total volume.35.0 drops30.0 drops25.0 drops20.0 drops10.0 drops0.0 dropsE1E4E2E5ЕЗE655

1.) Which solutions should you have used to make your Beer's Law Plot? 2.) What property of the product of your reaction allowed you to use visible spectroscopy to analyze your results? 3.) Using your absorbance value from Equilibrium mixture 5 (E5), show your calculation for the concentration of FeSCN^2+ in sample E5. (Provided picture for the resources)

1.) Which solutions should you have used to make your Beer's Law Plot? 2.) What property of the product of your reaction allowed you to use visible spectroscopy to analyze your results? 3.) Using your absorbance value from Equilibrium mixture 5 (E5), show your calculation for the concentration of FeSCN^2+ in sample E5. (Provided picture for the resources)

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter12: Chemical Equilibrium

Section: Chapter Questions

Problem 12.ACP

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Table 1: Absorbance data recorded for five 0.200 M Fe(NO:)3 solutions at 20.0 °C Beaker 0.0020 M [FESCN2+] (M) Abs. 0.00200 SCN (mL) Fe(NO3)3 (mL) 5.0 0.00 0.00 M -0.001 2 5.0 2.00 8.0 x 10-5 M 0.278 5.0 3.00 1.2 x 10-4 M 0.415 4 5.0 4.00 1.6 x 10-4 M 0.555 5.0 5.00 2.0 x 10-4 M 0.671 Part 1: y=3386x+0.0043 R^2=0.9991 Part II – Determining Concentration of an Unknown Table 2: Best-fit line and Absorbance data of unknown solution Best-fit line equation from Part I Absorbance reading of unknown 0.338 Part III – Determining the Equilibrium Constant Test tube 0.0020 M 0.00200 H20 (mL) Abs. Net Abs Fe(NO3)3 (mL) SCN-(mL) 1 3.00 0.00 7.00 0.000 2 3.00 2.00 5.00 0.119 0.119 3 3.00 3.00 4.00 0.212 0.212 4 3.00 4.00 3.00 0.265 0.265 5 3.00 5.00 2.00 0.335 0.335
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Chrome File Edit View History Bookmarks Profiles Tab Window Help Purple/Black Iridescent- KPM X G wilmington postal code - Goo X O Dealers - Nic www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IvdWKW_BBZZ161 O CHEMICAL REACTIONS Predicting precipitation Complete the table below by deciding whether a precipitate forms when aqueous formula in the last column. Does a precipitate form when A and B empirical formula of solution A solution B precipitate are mixed? iron(II) chloride potassium hydroxide O yes no iron(II) iodide cadmium acetate O yes O no barium nitrate potassium acetate O yes O no
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