Individual. Write 10 items questions and 10 items problems (1 pt) with answers/solutions (2pts), justification (1pt) and references (1 pt): 1. HPLC 2. IR 3. UV Vis 4. AAS 5. GC
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- 50 Percentage Red No. 40 Soln 100% 80% 60% 40% Table 4.1: Dilutions of Red No. 40 & Absorbance Volume of Red No. 40 Soln (mL) 10me 8mL опи 4mL Percentage Red No. 40 Soln 100% 80% 60% 40% 20% Volume of DI Water (mL) OML 2mL LIML M UML 8ML Table 4.2: Dilutions of Red No. 40 & Absorbance Concentration Red No. 40 2. Report the wavelength with the maximum absorbance of Red No. 40 dye. Absorbance 20% 2ML Part A: Making a Calibration Curve for Beer's Law 1. Calculate the concentrations of each of your diluted Red No. 40 solutions and add these to Table 4.2. Show at least one sample calculation in the space below. 0.251 0.192 Total Volume 0.181 0·119 0.060 (mL) 10 mL 10 mL 10 mL 10 mL 10 mLurses/ 2951 2. A linear standard curve of KMnO4 is prepared from a set of standard solutions by plotting absorbance (y) vs. concentration (x). Use Logger Pro (as described in the Data Analysis for this experiment), or Google Sheets/Excel, to plot this standard curve using the data in Table 1. Help with spreadsheets [PDF] Table 1: Data for the standard curve of KMnO4 Absorbance Concentration (M) 0.372 6.00 x 10-4 0.298 0.223 0.149 0.0744 After plotting the standard curve, enter its slope below (not the equation of the line). Report your answer to 3 significant figures. If your answer ends in one or more zeros, use scientific notation. Slope = 4.80 x 10-4 3.60 x 10-4 2.40 x 10-4 1.20 x 10-4 M-1 M 3. Suppose that an unknown sample is analyzed spectrophotometrically at the same wavelength that was used for the standard curve and the absorbance was found to be 0.186. Use the standard curve to find the concentration of the unknown. Hint:6-9 and 11-17
- V6O Homework in Chem101 - due Su X My Questions | bartleby ( Periodic Table – Royal Society of how to take a screenshot on an + A learn.maricopa.edu/courses/1132256/modules/items/19018052 CHM151 17003 > Modules > Weeks 8 & 9 - Chapter 7 > Homework in Chem101 - due Sunday night CG 2020 FALL CRED Question 37 of 4 Submit Account Home Complete the balanced neutralization equation for the reaction below: Announcements Dashboa |Modules HCIO-(aq) + CSОН(ag) — rd Concourse Syllabus Courses Grades D2+ N3+ D4+ Cisco Webex Groups 1 2 3 4 7 8 9. Tutoring/Learning Center Calendar Os Do Inbox (s) (1) (g) (aq) History Cs H CI Help • Previous Next » Library 1:03 PM O Type here to search 10/18/2020 +Which of the following must be present for an analysis to be successful? I) High selectivity II) Low detection limit III) Linear operating range A.I, IIB.II, IIIC. I, IIID. I, II, III
- fill in the missingDashboard MCC (21) B Quizzes - CHE111C05 Gen Colleg X m/d2l/Ims/quizzing/user/attempt/quiz_start_frame_auto.d21?ou3D3336147&isprv=&drc=D0&qi=3151427&cfql%=D0&dnb%3D0&fro ct Values shlee Garcia: Attempt 1 a. Given the diameter of the asteroid to be (8.50x10^0) km and the density of the asteroid to be (2.1100x10^0) g/cm, calculate the total mass of the asteroid. Remember to round your answer to the correct number of significant figures Note: The answer is assumed to be reduced to the highest power possible.(This means that everything is in scientific notation) When entering units for the answer, use the symbol for the unit, and if the unit has an exponent, enter the exponent as a carat(^). For example, grams would be "g" and, the unit grams per centimeter squared would look like, g/cm^2. Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer units dy hpTim is interested in analyzing for Pyraclostrobin (pesticide) in strawberries using QuECHers method for extraction and clean up before analysis with HPLC-uv. The concentration of the Pyraclostrobin in the fruits that he sampled is thought to be between 1-10 ng pesticide per g fruit fresh weight. The HPLC-uv instrument he is using has a LoQ of 5 ppb for Pyraclostrobin. Tim is starting out with 500 mg of the sliced fruit
- If the peak width w of both Peak 1 and Peak 2 fro eon 1g is 0.5 minutes, what is the resolution factor between the two peaks? 1.13 Selectivity is Peak 1 (6.0 min, Peak 2 w=0.5 (6.8 min, w=0.5 25 min) min) 20 15 Hold up peak (1.8 min) 10 0. 0. 4. 8. time (minutes) 2. 5. SignalCan you help me find the mixtures and the average on the second page. The first page has the experimental data on itUsing the data and formula given below, compute for the potency of Lot No. 3006, 2901 & 2892: