Recent questions in Analytical Chemistry

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What functional group(s) are present in a given unknown compound using infrared spectroscopy and how can they be identified through characteristic infrared absorption peaks?

asked 6 days ago in Analytical Chemistry by Eddie97G1445 (410 points)

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1 answer 7 views

What functional group(s) are present in a compound with the molecular formula C3H6O, as determined by infrared spectroscopy?

asked 6 days ago in Analytical Chemistry by DannyFlowers (870 points)

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1 answer 63 views

What are the specific steps and techniques used in X-ray fluorescence spectroscopy to determine the presence of a particular element in a given sample and what are the limitations of this method in accurately identifying the concentration and distribution of the element?

asked 6 days ago in Analytical Chemistry by KristalWearn (350 points)

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1 answer 61 views

What are the specific functional groups present in a given organic compound, and can they be identified using infrared spectroscopy? How can the data obtained from an infrared spectrum be used to confirm the presence of these functional groups?

asked 6 days ago in Analytical Chemistry by ReneFrederic (530 points)

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1 answer 66 views

What are the specific functional groups present in a given organic compound (unknown substance) which exhibits absorption peaks at 1650 cm^-1 and 1740 cm^-1 in IR spectroscopy and a peak at 220 nm in UV-Vis spectroscopy? Use the graph of absorptivity versus wavelength to determine the identity and concentration of those functional groups.

asked 6 days ago in Analytical Chemistry by FannieAuster (350 points)

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1 answer 77 views

What are the functional groups present in the given unknown compound and how can they be identified using infrared spectroscopy?

asked 6 days ago in Analytical Chemistry by Della9405948 (270 points)

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1 answer 61 views

What are the functional groups present in an unknown organic compound that has an IR spectrum showing a strong absorption band at 1730 cm^-1 and weak bands at 2960 cm^-1 and 3300 cm^-1? Identify the possible functional groups and explain the reasoning behind your identification.

asked 6 days ago in Analytical Chemistry by GeorgiaGoldb (390 points)

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1 answer 62 views

What are the functional groups present in an unknown organic compound and what are their characteristic infrared absorption frequencies as determined through infrared spectroscopy analysis?

asked 6 days ago in Analytical Chemistry by EmmaMsq72893 (550 points)

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1 answer 50 views

What are the functional groups present in a given organic compound and how can they be identified using infrared spectroscopy? Provide a step-by-step explanation of the process involved in analyzing the infrared spectrum of the compound to determine the functional groups present.

asked 6 days ago in Analytical Chemistry by KaceyGreaves (560 points)

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1 answer 38 views

Using X-ray diffraction, determine the chemical composition of an unknown mineral sample.

asked 6 days ago in Analytical Chemistry by LacyWehner92 (410 points)

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1 answer 46 views

Using X-ray diffraction, analyze the crystal structure and determine the chemical composition of an unknown mineral sample provided.

asked 6 days ago in Analytical Chemistry by BettyNnl3643 (300 points)

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1 answer 74 views

Using the melting point determination technique, determine the purity of a sample of aspirin and compare it to the expected melting point range for pure aspirin. Additionally, propose possible sources of error in the experiment and suggest ways to minimize them.

asked 6 days ago in Analytical Chemistry by NelsonRuby19 (550 points)

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1 answer 68 views

Using the data obtained from a nuclear magnetic resonance spectroscopy experiment, identify the structure of an unknown organic compound with a formula of C10H12O3.

asked 6 days ago in Analytical Chemistry by CarltonJjs44 (390 points)

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1 answer 68 views

Using polarography, determine the concentration of lead ions (Pb2+) in a drinking water sample obtained from a home in a certain locality.

asked 6 days ago in Analytical Chemistry by RositaTomlin (670 points)

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1 answer 79 views

Using nuclear magnetic resonance spectroscopy, determine the structure and functional groups present in an unknown organic compound with a molecular formula of C10H12O2.

asked 6 days ago in Analytical Chemistry by DarbyReis18 (650 points)

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1 answer 59 views

Using nuclear magnetic resonance spectroscopy data, how can you identify the structure of an unknown compound and determine the number and environment of hydrogen atoms present in that compound?

asked 6 days ago in Analytical Chemistry by KarolynElg36 (610 points)

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1 answer 52 views

Using mass spectrometry, identify the unknown compound X given the following key mass spectral data: molecular ion peak at m/z 112, base peak at m/z 91, and characteristic fragment peaks at m/z 73 and m/z 57. Provide a molecular structure proposal for compound X based on the mass spectral data.

asked 6 days ago in Analytical Chemistry by SimonPritcha (280 points)

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1 answer 61 views

Using mass spectrometry, analyze and identify the unknown compound given to you by comparing its mass spectrum with the known compounds in the database. What is the molecular weight and functional group of the unknown compound?

asked 6 days ago in Analytical Chemistry by IsabellaMcNa (520 points)

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1 answer 60 views

Using liquid chromatography techniques, determine the concentration of caffeine in a given sample of coffee and compare it with the recommended safe limit for human consumption.

asked 6 days ago in Analytical Chemistry by FosterN11866 (520 points)

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1 answer 53 views

Using infrared spectroscopy, identify the functional groups present in a given compound and explain their characteristic peaks in the spectrum.

asked 6 days ago in Analytical Chemistry by MarcelinoLyl (460 points)

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