Recent activity by VirgilioAbe5

1 answer 33 views

How do the coordination environments of metal ions in metalloenzymes and metalloproteins contribute to their function as catalysts?

answered Feb 19 in Coordination Chemistry

1 answer 29 views

How does the addition of cholesterol affect the fluidity and stability of a lipid bilayer composed of phospholipids?

asked Feb 17 in Computational Chemistry

1 answer 24 views

What is the impact of plasma treatment on the surface properties of biomaterials and how does that affect their biocompatibility?

asked Feb 14 in Surface Chemistry

1 answer 31 views

How can the yield and purity of fragrance compounds be optimized in the production process, and what factors must be taken into consideration in achieving this goal?

asked Feb 14 in Chemical engineering

1 answer 38 views

What is the role of metal ions in the function of metalloenzymes and metalloproteins? Provide specific examples and discuss the coordination chemistry involved in their function.

asked Feb 13 in Coordination Chemistry

1 answer 66 views

How can we design a drug that effectively targets specific neurotransmitter systems involved in the development of Alzheimer's disease, while avoiding off-target effects and minimizing side effects for patients?

asked Feb 12 in Medicinal Chemistry

1 answer 46 views

How can magnetic resonance spectroscopy be used to determine the purity and concentration of a sample in organic chemistry?

asked Feb 6 in Physical Chemistry

1 answer 35 views

How can chemistry teachers provide better support for students with learning disabilities in order to help them understand complex chemical concepts and perform well in exams?

answered Feb 6 in Chemical education

1 answer 36 views

How can computational chemistry be used to optimize the synthesis of metal-organic frameworks for improved gas storage and separation?

answered Feb 5 in Computational Chemistry

1 answer 38 views

How can magnetic resonance spectroscopy be used to determine the structure of complex organic molecules? Provide an example of a molecule and explain how its structure can be determined using this technique.

answered Feb 5 in Physical Chemistry

1 answer 86 views

Here is a chemistry problem related to renewable energy sources and their impact on the environment:What is the net energy yield and the carbon footprint of producing ethanol fuel from corn stover waste (a byproduct of corn cultivation) using a biochemical conversion process, and how does it compare to producing gasoline from crude oil in terms of environmental impact?

answered Feb 4 in Environmental Chemistry

1 answer 65 views

Consider an electrochemical cell consisting of a zinc electrode in one half-cell and a copper electrode in the other half-cell. The zinc electrode has a surface area of 5 cm² and is placed in a 0.1 M ZnSO₄ solution, while the copper electrode has a surface area of 10 cm² and is placed in a 1.0 M CuSO₄ solution. Calculate the polarization of the cell when a current of 0.5 A is passed through it.

answered Feb 3 in ElectroChemistry

1 answer 89 views

What is the concentration of lead (Pb) in a drinking water sample using cyclic voltammetry?

asked Jan 30 in Analytical Chemistry

1 answer 59 views

Calculate the formal charge on the sulfur atom in the compound SO₃²⁻.

asked Jan 23 in Inorganic Chemistry

1 answer 78 views

Calculate the band gap energy (in eV) of a crystal using density functional theory calculations. Given the crystal's lattice parameters and the positions of its atoms, determine its electronic properties and predict whether it is likely to be an insulator, semiconductor, or conductor.

asked Jan 23 in Computational Chemistry

1 answer 111 views

A chemistry student wants to determine the specific heat capacity of a metal sample. The student adds 50 g of the metal sample to 200 g of water at 25°C in a calorimeter. The temperature of the water rises from 25°C to 38°C. Assume the specific heat capacity of water is 4.184 J/g°C. What is the specific heat capacity of the metal sample?

asked Jan 22 in ThermoChemistry

1 answer 147 views

A chemistry student wants to determine the concentration of copper(II) ions in a solution using electrochemical methods. The student prepares a copper electrode and a reference electrode, and sets up a cell with the copper electrode immersed in the solution and the reference electrode in the salt bridge. The standard cell potential is measured to be +0.34 V. If the student knows that the reduction of copper(II) to copper occurs at the copper electrode, what is the concentration of copper(II) ions in the solution?

asked Jan 22 in ElectroChemistry

1 answer 113 views

How does the CYP3A4 enzyme affect the metabolism and potential interactions of commonly prescribed drugs in the treatment of cardiovascular disease?

answered Jan 22 in Medicinal Chemistry

1 answer 88 views

Identify the functional group and name the compound shown below:![Heterocyclic compound](https://i.imgur.com/ONOE8Lf.png)

answered Jan 21 in Organic Chemistry

1 answer 110 views

What is the molecular formula of benzene and what is the difference between the resonance structures of benzene?

answered Jan 21 in Organic Chemistry

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