Analytical Chemistry II Please do a table of comparison on the following GC with respect to their operating principles, advantages and disadvantages. 1. GC-MS 2. GC-FID 3. GC-ECD 4. GC-NPD
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Please do a table of comparison on the following GC with respect to their operating principles, advantages and disadvantages.
1. GC-MS
2. GC-FID
3. GC-ECD
4. GC-NPD
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- Plz do Asap....! Ignore marked options and give proper answers with proper explanation....!Please help me fill the remaining spaces. The spaces marked with NA don't need to be calculate. Name Molecular Weight Amounts used mmol Equivalents M.P or BP (C) Density (g/mL) Indene 116.16 .5mL MP=-2 BP=181-182 .996 Borane-tetrahydrofuran Complex 85.94 2.8mL 1 MP= -108 BP=66 NA 30% Hydrogen Peroxide 34.01 1mL MP= -33 BP=108 NA 3 M NaOH(aq) 40 .7mL MP=318 BP=1390 NA Diethyl Ether 74.12 NA NA NA BP=75-78 .902 Hexanes 86.17 NA NA NA BP=65.5-68.3 .659 Potassium Permanganate 158.03 NA NA NA BP=100 1.0 1-Indanol (Product) 134.13 NA MP=50-54 NA 2-Indanol (Product) Same as Above Same as Above Same as Above NA MP=68-71 NAA 50.00mL sample with BaCl2 was diluted to 650 mL. Aliquots of 100.00 mL of this solution were analysed using Mohr and Volhard methods. The following data were obtained. Volhard method: Volume of AgNO3 = 100mL; Volume of KSCN = 18.25mL Mohr Method: volume of AgNO3: sample = 27.80mL (blank) = 0.30mLWhat is the %BaCl2 using Mohr and Volhard Method. Concentration of KSCN: 0.04000M Concentration of AgNO3: 0.03000M
- a) How does mass spectrometry identify organic compounds? b) Describe the use and function of Quadrupole Analyzers ? c) One of the ionization sources for atomic mass spectrometry (MS) is Inductively Coupled Plasma (ICP). Explain the need for an interface in the ICPMS instrument and how can it be achieved.will addition of 300ml 0.005M agno3 to 200ml of 0.004M Al2(SO4)3 result in oreciptation of Ag2SO4 if Ksp of Ag2SO4 is 6.65x10^8?Calculate delt g for Pbl2(s) + Pb2+(aq) +2I-(aq) T= 25C Kp= 8.7x10-9
- Glycolic acid is used in the textile industry as a dyeing and tanning agent. Given that its acid dissociation constant (Ka) is 1.47 × 10-4 and its partition coefficient (KD) between water and benzene is 3.22, calculate the extraction efficiency of a single extraction when 50.00 mL of a 0.025 M aqueous solution of glycolic acid buffered to a pH of 3.00, is extracted once with 50.00 mL of benzene.Predict relative intensities at m/z 34, 35, and 36 for H2S. Let the intensity of the molecular ion be 100 and disregard contributions ,0.1%.(a) Three components in a mixture have varying distribution constants between the mobile phase and the stationary phase. One of the components has a very high distribution constant. Would this component likely elute first or last and how would you design an experiment or modify the components of the separation to make it perform in the opposite manner? (b) One way to dramatically increase the sensitivity of a quadrupole mass spectrometer is to use a technique called selected ion monitoring (SIM). Explain how this technique works and why it improves sensitivity. Explain what dwell time means. Be sure to draw a diagram and describe how this analysis scheme works. Also, is there a compromise between a wide range of masses scanned and SIM? Explain in easy details.
- Pls do Asap...! And give brief explanation ...!The maximum safe [Ba2+]=1.5x10-5M. Maintaining 1.0x10-3M levels for each of the anions below would ensure that this level is achieved except (Ksp of BaF2=1.7x10-6, BaCO3=5.9x10-9, BaC2O4=7.4x10-14, and BaSO4=1.1x10-10) A SO42- B C2O42+ C CO32- D F-Please determine Hvap using these: P2- 3.7kpaP1- 19.2kpa T2-276.65KT1-330.15K