Recent questions in Chemistry

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How do the carbohydrate-protein interactions regulate the function of enzymes involved in sugar metabolism?

asked Jan 31 in BioChemistry by OGQIla110241 (370 points)

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1 answer 50 views

How do carbohydrate-protein interactions and recognition play a role in the immune response to infections?

asked Jan 31 in BioChemistry by Addie5174877 (710 points)

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How do changes in enzyme activity and gene expression affect carbohydrate metabolism in the liver during fasting and fed states?

asked Jan 31 in BioChemistry by Dawn6982987 (330 points)

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What are the key structural features of cancer cells that can be targeted by drugs in order to selectively kill them, and how can medicinal chemists optimize the design of such drugs to increase their efficacy and minimize their side effects?

asked Jan 31 in Medicinal Chemistry by MadieGordon4 (470 points)

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1 answer 52 views

What would be the vibrational frequencies and infrared spectra of a methane (CH4) molecule, calculated using quantum chemistry methods?

asked Jan 31 in Quantum Chemistry by DonThorton4 (370 points)

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What is the rate constant for the photoisomerization of retinal to the all-trans configuration in the Rhodopsin protein, using ab initio calculations of excited state dynamics?

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

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1 answer 59 views

How can we calculate the HOMO-LUMO gap and absorption spectrum of a specific conjugated polymer using quantum chemical methods?

asked Jan 31 in Quantum Chemistry by XZYNeva6082 (570 points)

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How do we calculate the electronic and optical properties of perovskite materials using quantum chemistry methods such as density functional theory (DFT) and time-dependent DFT?

asked Jan 31 in Quantum Chemistry by RosalieJeffr (670 points)

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1 answer 48 views

How can we calculate the carbon footprint of an individual or a community and identify the major sources of greenhouse gas emissions? What are the possible ways to reduce the carbon footprint and mitigate the negative impact of human activities on the environment?

asked Jan 31 in Environmental Chemistry by HermelindaTh (370 points)

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1 answer 62 views

How can you calculate the carbon footprint of a specific industrial process and suggest possible strategies to reduce it?

asked Jan 31 in Environmental Chemistry by NapoleonPau (330 points)

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What is the activation energy and reaction rate constant for the Cl + CH4 -> HCl + CH3 reaction at 298 K, calculated using quantum chemical methods?

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

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Identify the type of bonding in calcium chloride and justify your answer with specific characteristics of the compound.

asked Jan 31 in Inorganic Chemistry by ChetChadwick (450 points)

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1 answer 60 views

What is the percentage of nitrogen, carbon, and hydrogen in a sample of caffeine obtained from coffee beans? Use elemental analysis to determine the composition of the sample.

asked Jan 31 in Analytical Chemistry by EdmundoFlora (590 points)

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1 answer 60 views

What is the molecular structure of caffeine and how can its structure be determined using spectroscopy and vibrational analysis?

asked Jan 31 in Physical Chemistry by RBSJonna0719 (330 points)

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What types of bonding are present in caffeine molecule and what is the molecular structure of caffeine? Provide a detailed explanation based on your knowledge of chemical bonding and molecular structure.

asked Jan 31 in Chemical education by KeeleyGame0 (410 points)

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1 answer 57 views

What is the percentage composition of carbon, hydrogen, and nitrogen in a sample of caffeine, using elemental analysis?

asked Jan 31 in Analytical Chemistry by RobbinTerril (470 points)

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1 answer 62 views

What is the percentage composition of carbon, hydrogen, and nitrogen in a sample of caffeine? Use elemental analysis to determine the answer.

asked Jan 31 in Analytical Chemistry by LettieWtt655 (510 points)

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1 answer 64 views

What is the percent composition of carbon, hydrogen, and nitrogen in a sample of caffeine? Use elemental analysis to determine the answer.

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

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1 answer 68 views

What is the percent composition of carbon, hydrogen, and nitrogen in a 10 gram sample of caffeine? Use elemental analysis to determine the answer.

asked Jan 31 in Analytical Chemistry by SofiaBrunson (450 points)

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1 answer 57 views

What is the expected acidity or basicity of a molecule with a formula of C6H5OH? Justify your answer with an explanation of the chemical bonding and electronegativity of the atoms involved in the molecule.

asked Jan 31 in Chemical bonding by EsperanzaAur (510 points)

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