Recent questions in Chemistry

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What is the electronic structure and composition of the first excited state of the ethylene molecule (C2H4) using time-dependent density functional theory?

asked Jan 31 in Computational Chemistry by Steve6884784 (630 points)

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1 answer 69 views

What is the dipole moment of water molecule using ab initio calculations?

asked Jan 31 in Computational Chemistry by Brian0571409 (470 points)

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1 answer 49 views

What is the Dipole Moment of Nitrogen Molecule Using Ab Initio Calculations?

asked Jan 31 in Computational Chemistry by MylesLouden (630 points)

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1 answer 58 views

What is the dipole moment (in Debye) of water molecule as predicted by ab initio calculations using the Hartree-Fock method with a 6-31++G(d,p) basis set?

asked Jan 31 in Computational Chemistry by DeclanRedmon (290 points)

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What is the electronic structure and properties of the [Fe(CO)5] complex using ab initio calculations?

asked Jan 31 in Computational Chemistry by IrisDemarco9 (450 points)

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1 answer 70 views

What is the potential of a natural plant compound to act as an effective cancer treatment? Provide experimental evidence to support your findings, including the mechanism of action and toxicity profile of the compound.

asked Jan 31 in Medicinal Chemistry by JoyMarkley53 (710 points)

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1 answer 62 views

What is the molecular structure of a sample under investigation, based on the magnetic resonance spectra recorded at different temperatures and under different magnetic fields?

asked Jan 31 in Physical Chemistry by FaustoRhea01 (410 points)

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1 answer 63 views

How does the size of a gold nanoparticle affect its stability and interaction with water molecules? Perform a molecular dynamics simulation using appropriate software to investigate the behavior of gold nanoparticles of varying sizes in water. Analyze your results to determine the correlation between nanoparticle size and stability, and provide an explanation for any observed trends.

asked Jan 31 in Computational Chemistry by EmilieBobb0 (370 points)

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1 answer 63 views

What is the energy difference between the ground state and the first excited state of a molecule of benzene, calculated using time-dependent density functional theory (TD-DFT)?

asked Jan 31 in Computational Chemistry by EmanuelBrier (450 points)

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1 answer 61 views

What is the impact of the use of wind turbines on local bird populations in a specific region?

asked Jan 31 in Environmental Chemistry by WandaBooze40 (270 points)

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1 answer 59 views

Which functional groups are present in compound X as determined by its infrared spectrum, and what structural features of the compound are suggested by the observed IR peaks?

asked Jan 31 in Analytical Chemistry by SherrillBlos (510 points)

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1 answer 58 views

What specific functional group is present in compound X as determined by UV-Vis spectroscopy analysis?

asked Jan 31 in Analytical Chemistry by GMBCarmon086 (530 points)

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1 answer 53 views

What is the most efficient and cost-effective process for the production of a specific food additive (specified by the teacher or assigned by the student) using chemical engineering principles and equipment? And how can the chemical engineers optimize the process to produce the food additive in the required quality and quantity?

asked Jan 31 in Chemical engineering by NelsonRuby19 (550 points)

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1 answer 53 views

What is the carbon footprint of the transportation industry in your local area, and how can we reduce it?

asked Jan 31 in Environmental Chemistry by BryantFacy8 (290 points)

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1 answer 63 views

What is the concentration of lead in a water sample collected from a nearby river using atomic absorption spectroscopy?

asked Jan 31 in Analytical Chemistry by RainaGumm51 (250 points)

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1 answer 73 views

What is the concentration of heavy metals and organic pollutants in landfill leachate samples and how do they affect the quality of the groundwater in the surrounding area?

asked Jan 31 in Environmental Chemistry by WilmerHarper (470 points)

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1 answer 66 views

What is the specific concentration of the pesticide residue chlorpyrifos in a particular brand of apples and how does it compare to the Maximum Residue Limit (MRL) established by the regulatory authority? Additionally, what is the potential human health impact of consuming the apples with the measured pesticide residue concentration?

asked Jan 31 in Environmental Chemistry by DallasMerrim (530 points)

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1 answer 64 views

What is the rate expression for the following gas phase reaction?2NO2(g) → 2NO(g) + O2(g)The student would need to determine the rate expression using experimental data and the rate law equation.

asked Jan 31 in Physical Chemistry by DianHolliday (450 points)

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1 answer 62 views

What is the elemental composition in a soil sample collected from a farm field that has been subjected to excessive use of synthetic fertilizers for the past five years? Use the information obtained from the elemental analysis to suggest alternative fertilization techniques that would improve soil health and preserve long-term fertility.

asked Jan 31 in Analytical Chemistry by MahaliaSchul (570 points)

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1 answer 7 views

What is the critical micelle concentration (CMC) of surfactant X in an aqueous solution at 25°C? Provide a detailed explanation of the method used to determine the CMC of surfactants and discuss the significance of CMC in surface chemistry.

asked Jan 31 in Surface Chemistry by GonzaloBenne (370 points)

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