Unknown and add results please Part III: Identification of the organic component in the unknownUnknown code:NUTComposition of the optimized mobile phase:30/70 HEXANE/ETOACBased on your observations in Part (II), briefly justify your choice of this solvent system.Mubile phase 70%thylacetate0% hexane, 7mlmixed with 3ml hexane.6.5TLC analysis:Distance travelled by the mobile phase:.Distance travelledRfTLC SketchTylenol2.30cm0.35Phenacetin4.20cm0.65Acetanilide4.70cm0.72UnknownT PAUResults:Identify the ingredients of the unknown mixture provided to you based on the TLC analysis? Explain how youarrive at your conclusion.70% ethylactateIs the bestcompound4

Certainly! Let's dive into a detailed explanation of how to interpret the TLC (Thin Layer…

Answered: Part III: Identification of the organic…

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter5: Distillation

Section: Chapter Questions

Problem 4Q

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"F0rmat: Giv3n: Requir3d: Equati0n: Soluti0n: Answ3r:
the dimensionless Henry's law constant for trichloroethylene at 25 degrees Celcius is 0.4. A sealed glass vial is prepared that has an air volume of 4ml overlying an aqueous volume of 36ml. TCE is added to the aqueous phase so that initially it has an aqueous-phase concentration of 100 ppb. After the system equilibrates, what will be the concentration (in units of microgram per liter) of TCE in the aqueous phase
Construct the phase diagram for for gold and thallium. Pure gold melts at 1063°C and pure thallium melt at 302°C, respectively and a eutectic composition between 20 and 30 wt-% Au is found with a melting point of 128°C. (a) Identify the eutectic composition (b) For each region, identify the number of phases and the solid that separates out, if any. (c) Find the composition(s) at ZA = 60 wt-% Au at 400°C! (d) What is the ratio of amounts in the phases for the point in (c)? - (e) For a composition(s) of ZA 20 wt-% Au, heat the sample from the 0°C to 400°C; for each phase transition describe the number of phases, composition of each phase and relative amounts at the start and end point, before and after the phase transition. Composition, wt-% Au 10 20 30 40 60 80 90 Melting T (°C) 272 204 200 400 686 910 998
3. Binary system acetonitrile(1)/nitromethane(2) conforms closely to Raoult's law. Vapor pressures for the pure species are given by the following Antoine equations: In P1sat/kPa=14.2724-2945.47t/°C+224.00 In P2sat/kPa=14.2043-2972.64t/°C+209.00 Prepare a Pxy diagram for a temperature of 75°C by calculating and plotting the mole fraction of acetonitrile in the vapor phase y1, and the total pressure, P, for different values of X1 as presented below: Mol fraction of acetonitrile in the liquid phase, X1 Mol fraction of acetonitrile in the liquid phase, y Total pressure, P (kPa) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 Using your plot, estimate the pressure and liquid composition (X1 and X2) of this mixture when the vapor is 60-mol% acetonitrile. Using interpolation, calculate the pressure and X1 with the same given vapor composition of acetonitrile. Compare your estimation and get the % error.
Consider a mixture of the compounds shown below dissolved in hexane (C,H14). CH3(CH2)10CH3 CH;COOH CH,CH2CH2OH CH3COCH,CH3 IV The mixture is separated using the TLC technique. The solvent used as mobile phase is benzene (a non polar solvent) and the plate used as stationary phase consists of a coat of silica (SiO»). Which compound will move faster? O II O IV
Calculate the - total number of moles of oxalate ions (sources are oxalic acid solutions and potassium oxalate monohydrate is 0.0186 moles) - total number of moles of Fe3+ ions (source is ferrous ammonium sulfate hexahydrate, FeSO4(NH4)2SO4.6H2O)
Colligative properties *Hole fraction iutro of TEchnolag. XA Moles of A. tatal moles of All Conpaunds we need Soluent not Solude Molality m= moles of salute Wass Solvent Ckg) Molanity- moles of soluter lNd Solution(valume 90001 Slide 14 exanuple 4 what are the Ca) mole fraction dblmdalikynof ethylene glycol CalluCoH)2 in a 80lution pepareol from 2.22X10g. ofettuyl glycol anol 200XI09.of water mole fraction ? molality? Mole frackion CaHy COH)2=22209X * Catu(oHlec620 *2Lof water 358mol tmel 6207g he wader Promgrams to kg tmol 18.02 -2000gX mal /H20 X ethe- 358 0.245 glycol (35.8+網山 molality $2220 (CHulO)2 - 35.8 mol 62.0 ) 2000 (- 2kg 1o00 3) 38 35.8= 179m 2.
6. Using phase diagram for the mixtures of benzene and ethylbenzene shown below, estimate: Benzene / Ethybenzene at 1.00 atm By NRTL A) Boiling point of pure ethylbenzene 140- 135- 130- B) Boiling point (Tpp) of solution with molar fraction of benzene 0.3. 125 120- 115 110- C) Composition of vapor phase (molar fractions of both liquids) above the solution with molar fraction of benzene 0.3 at Töp. 105- 100 90 85 80- 75- a1 02 03 04 05 06 0.7 0.8 09 Benzene Mole Fracfioni
Need solution urgently
iverity at Anbar Cellege for Pure Belenees Analytical Chemistry 1// 1 Stage Dr. Bashar AbdulazeeR Mahmood Peperiment of Chemistry H.W: date the Formal and Molar concentrations of the constituents in 2.30 g of ethanol (g. fw%3D ) in 3.50 litres of aqueous solution. 4) Molal concentration (Molality) m The solution concentration produce from dissolved solute (mole) in solvent (kg), molality oes not change with temperature and used for physicochemical measurements. Example: Calculate the molal concentration for solution preparing from mixing 4 g NAOH with 500 g water. W 1000 4 g 1000 Solution: Molality (m) = 0.2 m %3D M.w w (g) 40 g/mol 500 (5) Concentration by percent Chemists frequently express concentrations in term of percentage Common methods include: a. Weight percent (w/w): It is the number of grams of solute per g of solvent or solution (w/w) E-) w of solute (g) w of solution or sample (g) w of solute (mg) w of solution or sample (mg) -%- %3D x 100 = %3D X 1
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