Recent questions in Chemistry

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

asked Jan 30 in Analytical Chemistry by AntoniettaMe (2.0k points)

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1 answer 98 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 Jan 30 in Analytical Chemistry by PhillipPugli (2.1k points)

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1 answer 93 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 Jan 30 in Analytical Chemistry by MarcellaFurp (1.7k points)

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1 answer 121 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 Jan 30 in Analytical Chemistry by MckinleyO01 (2.0k points)

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1 answer 111 views

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

asked Jan 30 in Analytical Chemistry by Alexis87J090 (1.6k points)

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1 answer 87 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 Jan 30 in Analytical Chemistry by WalterC19362 (2.4k points)

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1 answer 94 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 Jan 30 in Analytical Chemistry by BarbraBelang (2.1k points)

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1 answer 76 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 Jan 30 in Analytical Chemistry by TrevorE07525 (2.2k points)

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1 answer 50 views

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

asked Jan 30 in Analytical Chemistry by MelbaTulloch (2.2k points)

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1 answer 61 views

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

asked Jan 30 in Analytical Chemistry by FilomenaWago (1.8k points)

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1 answer 96 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 Jan 30 in Analytical Chemistry by AntoniettaLa (1.9k points)

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1 answer 91 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 Jan 30 in Analytical Chemistry by DelorasGaise (1.9k points)

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1 answer 101 views

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

asked Jan 30 in Analytical Chemistry by JeffreyCone5 (1.7k points)

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1 answer 106 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 Jan 30 in Analytical Chemistry by EtsukoCantwe (1.8k points)

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1 answer 101 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 Jan 30 in Analytical Chemistry by HarryHodgkin (2.2k points)

+1 vote

1 answer 87 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 Jan 30 in Analytical Chemistry by YQYFlora9901 (1.9k points)

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1 answer 85 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 Jan 30 in Analytical Chemistry by NamSampson2 (1.8k points)

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1 answer 122 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 Jan 30 in Analytical Chemistry by NadiaN491716 (2.1k points)

+1 vote

1 answer 88 views

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

asked Jan 30 in Analytical Chemistry by NilaBody107 (1.7k points)

+1 vote

1 answer 97 views

Using infrared spectroscopy, characterize the functional groups present in a compound labeled as unknown X. Compare the IR spectrum of unknown X with the spectra of known compounds and identify the functional groups present in unknown X.

asked Jan 30 in Analytical Chemistry by Hanna191905 (2.0k points)

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