Recent activity by CandelariaFe

1 answer 42 views

What is the net yield of ATP molecules produced by one turn of the citric acid cycle, and how do the electron transport chain and oxidative phosphorylation contribute to the overall production of ATP in cellular respiration?

answered Feb 21 in BioChemistry

1 answer 30 views

What is the impact of increasing atmospheric carbon dioxide (CO2) levels on the Earth's surface temperature, and how does the chemical composition of greenhouse gases contribute to global warming?

asked Feb 20 in Environmental Chemistry

1 answer 34 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their catalytic activity? Provide an example of a metalloenzyme or metalloprotein and explain how its coordination chemistry contributes to its function as a catalyst.

answered Feb 19 in Coordination Chemistry

1 answer 28 views

What is the boiling point of magnesium chloride (MgCl2) if its melting point is -711°C? (Assuming standard pressure and the compound is in its solid form when heated to its boiling point.)

asked Feb 17 in Inorganic Chemistry

1 answer 65 views

What is the effect of surface modification on the mechanical and surface properties of polymers?

answered Feb 17 in Surface Chemistry

1 answer 42 views

How does surface modification of nanoparticles affect their stability, reactivity, and interaction with biological systems?

asked Feb 17 in Surface Chemistry

1 answer 43 views

How do the photochemical properties of quantum dots change with variations in their size and composition?

asked Feb 14 in PhotoChemistry

1 answer 40 views

How does the chemical process of ozone layer depletion occur and what is the role of chlorofluorocarbons (CFCs) in the process? Additionally, what are the potential impacts of ozone depletion on the atmosphere and human health?

asked Feb 14 in Environmental Chemistry

1 answer 12 views

What is the effect of increasing atmospheric levels of carbon dioxide on the Earth's temperature and what role do greenhouse gases play in the process of global warming?

answered Feb 13 in Environmental Chemistry

1 answer 36 views

How can the mechanical and chemical properties of polymer-based biomaterials be optimized to enhance tissue regeneration and functional restoration in case of tissue damage or diseases?

asked Feb 7 in Polymer Chemistry

1 answer 38 views

How can the chemical engineering principles be applied to design an optimized system for the production of natural flavors that meet the required quality, quantity, and sustainable production goals?

asked Feb 6 in Chemical engineering

1 answer 84 views

Calculate the vibrational frequencies and predict the infrared spectrum of methane (CH4) using quantum chemical methods.

asked Feb 3 in Quantum Chemistry

1 answer 58 views

Calculate the standard electrode potential for a redox reaction involving the reaction of iron (Fe) with copper (Cu) ions, given the following half-reactions: Fe2+ + 2e- → FeCu2+ + 2e- → Cu (Note: The standard electrode potential values for Cu2+/Cu and Fe2+/Fe half-cells at 25°C are 0.34V and -0.44V, respectively.)

asked Feb 3 in Chemical thermodynamics

1 answer 60 views

What is the effect of changing the concentrations of reactants and products on the equilibrium constant (K) and reaction rate for the reaction: A + B ⇌ C + D?

asked Feb 3 in Chemical kinetics

1 answer 79 views

How does the process of carbon fixation contribute to the overall process of photosynthesis, and what role does the enzyme Rubisco play in this process?

asked Jan 31 in BioChemistry

1 answer 82 views

If the equilibrium constant (Kc) for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) at a certain temperature is 4.0×10^-3, and a catalyst is added to speed up the reaction, how will the equilibrium position shift? Calculate the new equilibrium constant if the catalyst increases the rate of the forward reaction by a factor of 10.

answered Jan 30 in Chemical equilibrium

1 answer 109 views

What is the concentration of iron (Fe) in a sample of water collected from a nearby river using spectrophotometric analysis?

answered Jan 30 in Analytical Chemistry

1 answer 101 views

One precise problem for the chemistry student to solve could be: Using colorimetry, determine the concentration of iron (II) ions in a given sample of water and compare your results with the acceptable limit set by the Environmental Protection Agency.

answered Jan 30 in Analytical Chemistry

1 answer 75 views

Calculate the HOMO-LUMO energy gap of a conjugated polymer with a repeating unit of poly(p-phenylene vinylene) (PPV) using quantum chemical methods (such as Density Functional Theory) and determine whether the polymer is expected to exhibit optoelectronic activity in the visible region of the electromagnetic spectrum.

asked Jan 23 in Quantum Chemistry

1 answer 48 views

Calculate the band gap and optical absorption spectrum of a graphene monolayer using quantum chemical calculations and compare it with that of a MoS2 monolayer. Which material would be more suitable for optoelectronic devices? Explain your reasoning.

asked Jan 23 in Quantum Chemistry

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