4958 METHYL-M-NITROBENZOATE-CARBON 200 180 160 140 120 100 80 60 40 20 ppm 86 9T 8- - 52.7

Q: Weight of egg yolks: 17.8 g Crude cholesterol weight: 232 mg Recrystallized cholesterol weight: 168…

A: Amount of egg yolks = 17.8 gm = 17800 mg  Amount of crude cholesterol = 232 mg  Amount of…

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A: Gas chromatography (GC) is a form of analytical chemistry chromatography that is used to separate…

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A:

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Q: 4. You analyze a mixture of cyclopentane, pyrrolidine, and tetrahydrofuran by gas chromatography and…

A: Gas chromatogram of a mixture of three compounds cyclopentane, pyrrolidine and tetrahydrofuran

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A: The given data contains, Absorbance=1.17path length=1.15 cmMolar absorptivity=1 M-1.cm-1

Q: oles of I-(x 10) noles of Pb2+ (x 10-5) noles of Pb2+ (X 10-5)

A: 1) 5 mL of 0.012 M Pb(NO3)2 gives 0.012 *5mmol= 0.06 mmol of Pb2+.

Q: Question attached

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Q: |1,2,3 Peaks: 5. Ethyl benzoate 6. Toluene 7. 2,6-Dimethoxytoluene 8. o-Methoxybiphenyl 1. Benzyl…

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A: Atomic Structure and PolarityThe designs of the significant parts are given beneath. Note that the…

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A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 14. If an ink is made by mixing dyes 1,2 and 3, which chromatogram will be produced from the ink?…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Draw a GC chromatogram for a 50:50 and 25:75 mixtures of hexane (bp 68°C) and toluene (bp 111°C)

A: GC chromatogram are to be drawn for 50:50 and 25:75 mixtures of hexane and toluene.

Q: In a normal phase chromatography set up, the component that yields the highest Rf value is likely to…

A: In a normal phase chromatography set up , the conponent that yields the highest Rf value is likely…

Q: A student performed a chromatography experiment to determine the Rf value of an unknown amino acid.…

A: The Rf value ( retention factor) of a compound is defined as the ratio of distance travelled by the…

Q: Unknown A: Melting point of Unknown A: Gcetomide Candidate compounds from Table 1: 1. M.P. 2. M.P.3-…

A: Melting point is the temperature at which the solid and liquid forms of a pure substance which exist…

Q: It is acceptable to draw the TLC spotting line with a pen as long as it is marked very lightly.…

A: False

Q: Answer Only This is a technique used to separate the components of a mixture using a stationary…

A: Thin Layer Chromatography: it is a technique used to separate the non-volatile mixtures. It is…

Q: Identify the composition of the unknown from this TLC plate. A = Aspirin %3D B = Acetaminophen C =…

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Q: Help me solve this, please? With the following data, and given the absorbance of the unknown…

A: The concentration (M) of the unknown solution is to be calculated

Q: student runs a TLC of a sample using a nonpolar development solvent. The TLC shows one spot. The MP…

A: Given is,  A student runs a TLC of a sample using a nonpolar development solvent. The TLC shows one…

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Q: what is the unkown that line up with caffeine and acetaminophen and acetyl salicylic acid in TLC…

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Q: VI. Four compounds were analyzed on tlc plate after spotting them and developing them with 75% Ethyl…

A: Thin-layer chromatography (TLC) is an analytical tool that has prevalent applications in the…

Q: 1. H* [-H20] HO HO OH (excess) но. 2. NalO4 CH3 3. Ph3P=/ ČH3 OH H* [-H20] HO, ČH3 1. H* (-H20] он I…

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Q: 5 3 2 |------------ 1 2 3 4 5 4, 1. distance in cm

A: Rf = 0.40

Q: Which one of the following chromatographic techniques is useful in the identification of organic…

A: Chromatography is used to know the molecular weight . Here the known polymer is used to made the…

Q: As solvent polarity increases, the Retention Factor (Rf) of compounds on the TLC plate increases.…

A: Retention factor= distance travelled by compound/distance travelled by solvent. As solvent polarity…

Q: 27-Oct-2021 + 19:20:00 2-chloro-2-methylbutane-wed1 100 Scan El+ TIC 3.30e7 1.04;55:400102 Area

A: Structure of 2-chloro-2-methylbutane

Q: According to the video, the unknown compound could be a benzoic acid or mandelic acid. Use the…

A: This Technique is Called Mixed melting point Technique in which Unkown is added to Known compounds.

Q: MW (mg/mmol) Density (mg/uL) Amount used vanillin 152.15 XXXXX 400.0 mg acetic anhydride 102.09 1.08…

A: Number of millimoles=Amount/MW Amount of acetic anhydride=500 mg (since, 1ul=1mg)  MW of acetic…

Q: A student was trying to determine the identity of an unknown compound.  The melting point of the…

A: Melting point of any substance is defined as the point where solid form changes to liquid form.…

Q: 1. You have determined the mp of pure Urea and pure Cinnamic acid. Here is your actual data: Urea:…

A: For drawing the plot we have to calculate average melting point for a particular % composition.

Q: What would the quality of the line-fit (R² value) be if you do not exclude experimental outliers?…

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Q: Chromatography

A: Ascorbic acid is present in vitamin C  Mass spectroscopy method can not be used because it's will…

Q: Draw a GC chromatogram for a 50:50 and 25:75 mixtures of hexane (bp 68°C) and toluene (bp 111°C).

A: To draw a GC chromatogram for the following: a) 50:50 mixture of hexane (bp 68oC) and toluene (bp…

Q: Relative Intensity 100 60 40 8 / Find out the functional group 10 20 50 40 50 60 70 1860 my 2000 Wer

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Q: Identify the most polar substance shown on the following TLC plate. Yellow spot Blue spot Red spot…

A: In chemistry the mixtures of non volatile Substances can be separated by help of thin layer…

Q: To 4-5 drops of an unknown alcohol, 1 mL of Lucas reagent (ZnCl2 + HCl) is mixed. No cloudiness or…

A: Lucas reagent is made up of ZnCl2 mixed with HCl. When Lucas reagent is mixed with an primary…

Q: You are given a pure unknown compound with a melting point of 118 – 120°C, which is either mandelic…

A: A question based on melting point of sample, which is to be accomplished.

Q: Identify the parent and propose a structure for the base peak in the massspectrum of butan-1-amine.

A: Mass spectrometry is used to detect the mass-to-charge ratio of the molecular ion. A plot of…

Q: 6. The ir and MS for a compound are shown below. Identify the compound. Clearly show your reasoning.…

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Q: Procaine hydrochloride (MW = 273; L iso value = 3.37). Calculate its NaCl Equivalent 0.24   0.19…

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Q: Consider the diagram below to answer questions 5 and 6. R = 0.70 R = 0.55 R; = 0.47 Eluent: EtOAC…

A: Rf= 0.55 correspinding to compound 1. Since more is the polarity more will be the Rf value.  Thus…