Recent questions in Analytical Chemistry

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Identify the unknown compound X using mass spectrometry data provided. The data includes the molecular ion peak at m/z 172, and fragment ions at m/z 145 and 127.

asked Jan 30 in Analytical Chemistry by Makayla14235 (2.3k points)

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1 answer 116 views

Identify the unknown compound X using mass spectrometry data given below. The molecular ion peak of X is observed at m/z 120 with a relative intensity of 100%. Additionally, the following fragment peaks with their respective relative intensities were also observed: m/z 105 (40%), m/z 92 (15%), m/z 77 (10%), and m/z 65 (5%). What is the molecular formula of X and what is its structural formula?

asked Jan 30 in Analytical Chemistry by MarielScully (1.4k points)

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Identify the unknown compound using mass spectrometry for a sample that has a molecular ion peak of m/z 167 and fragmentation peaks of m/z 150, 135, 77 and 49.

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

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1 answer 77 views

Identify the unknown compound obtained from a mixture of three compounds using mass spectrometry. Provide the molecular formula and structural formula for the unknown compound.

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

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1 answer 80 views

Identify the unknown compound in a given sample using mass spectrometry and provide its chemical formula, molecular weight, and possible functional groups present in the compound.

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

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1 answer 132 views

Identify the structure of an unknown organic compound using nuclear magnetic resonance spectroscopy, given the following NMR spectrum and molecular formula (C7H14O2): Chemical shift (ppm) Integration0.87 — 3H (s)1.25 — 3H (s)1.45 — 2H (m)2.10 — 2H (t)2.80 — 1H (br s)4.00 — 1H (t)4.20 — 1H (br s)9.70 — 1H (s)

asked Jan 30 in Analytical Chemistry by KarolinBalse (1.5k points)

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1 answer 84 views

Identify the structure of an unknown compound with a mass-to-charge ratio (m/z) of 112 using mass spectrometry. What is the molecular formula of the compound based on the information obtained from the mass spectrum?

asked Jan 30 in Analytical Chemistry by LouellaComo (1.5k points)

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Identify the structure of an unknown compound (C10H12O2) using nuclear magnetic resonance spectroscopy.

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

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Identify the functional groups present in an unknown organic compound using infrared spectroscopy and explain their characteristic peak frequencies.

asked Jan 30 in Analytical Chemistry by HazelMcCaule (1.5k points)

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1 answer 123 views

Identify the functional group(s) present in a given compound using infrared spectroscopy and explain how you arrived at your conclusion using the generated spectra.

asked Jan 30 in Analytical Chemistry by CollinByrd4 (1.4k points)

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1 answer 73 views

Identify the functional group present in an unknown compound using UV-Vis spectroscopy and provide a detailed explanation of the absorption band observed in the spectrum.

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

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1 answer 120 views

Identify the compound with the molecular formula C10H12O by interpreting its proton NMR spectrum.

asked Jan 30 in Analytical Chemistry by 540252730007 (1.9k points)

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1 answer 100 views

Identify an unknown organic compound using mass spectrometry. Provide a detailed analysis of its molecular formula, functional groups, and possible chemical structure.

asked Jan 30 in Analytical Chemistry by EmileR968610 (2.0k points)

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1 answer 120 views

How would you determine the concentration of chloride ions in a sample of seawater using an ion-selective electrode?

asked Jan 30 in Analytical Chemistry by IFYRussel191 (2.2k points)

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1 answer 78 views

How would you calculate the mass of zinc in a 1.000 g sample of a brass alloy using gravimetric analysis?

asked Jan 30 in Analytical Chemistry by StanleySparr (1.3k points)

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1 answer 106 views

How to quantify the concentration of copper (II) ions in a sample of water using colorimetry?

asked Jan 30 in Analytical Chemistry by KitRatley759 (1.9k points)

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1 answer 147 views

How to identify the presence of lead and cadmium in a soil sample using X-ray fluorescence spectroscopy?

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

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1 answer 107 views

How to identify the presence of carbonyl functional groups in a given unknown organic compound using infrared spectroscopy?

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

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1 answer 86 views

How to determine the exact concentration of various cations and anions present in a given sample using capillary electrophoresis and what factors affect the separation and detection of these ions during the analysis?

asked Jan 30 in Analytical Chemistry by KassieStarns (2.3k points)

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1 answer 103 views

How to determine the concentration of hydrochloric acid in a given sample using potentiometry?

asked Jan 30 in Analytical Chemistry by DanielPidgeo (2.1k points)

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