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 mLNeed complete solutions no need ai solutions okk just solve accurateurses/ 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:
- O 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 +CPU/RAM ProctorU e Proctor e Proctoru o.com/collab/ui/session/join/43918c0bf9cb421ca7b98b0075f5f239 Firefox Ex SPECTROSCOPY 1. If the concentration of solute in a solution is high, the Absorbance will be high or low and why? 2. Was the spectroscopy experiment qualitative or quantitative analysis? 3. If we have 12M HCI and we need 3 L of 1M HCI, how much 12 M should we use? 4. What does Molarity mean? 5. When must safety goggles be worn? 6. If you make a mistake recording data, what must you do? spec hw.pptx (2/3) ..% AnCan you help me find the mixtures and the average on the second page. The first page has the experimental data on it
- How to interept this data to match the structure? It gives the peak/PPM and having trouble matching it up. Does the intensity of the peak mean something? If possible, please draw it with thr associated peaks/ppm's.Tube #: 2 3 4 mL 0.0120 M Pb(NO,), 5.00 5.00 5.00 5.00 2.00 3.00 4.00 5.00 mL 0.0300 M KI mL 0.20 M KNO, 3.00 2.00 1.00 0.00 Total vol. (mL) 10.00 10.00 10.00 10.00 Absorbance of soln. 0.381 0.420 0.470 0.542 [I] at equilibrium (M)Question 2. (B) the DART source (direct analysis in real time) is a relatively new MS technique. What is it and how does it work? What is it useful for?
- Molar concentration of the dye stock solution: 2.52e-5 mol/L Operating Wavelength: 630 nm Solutions(Dilutions) Absorbance (A)(a.u.) 1 0.073 2 0.118 3 0.258 4 0.477 Using linear regression determine the absorbance/concentration relationship for the dye. [dye] =_____ x APlease do 17. Thank you.100 MASS SPECTRUM 80 60 40 20 0.0 10 20 30 40 50 60 m/z NIST Chemistry WebBook (https://webbook.nist.gov/chemistry) 1. What is the M'? 2. What is the m/z of the base peak? 3. Does it contain chlorine? Explain your answer. Rel. Intensity