Recent activity by MarcellaMack

1 answer 72 views

How does the production and consumption of a particular product (e.g. gasoline or plastic) contribute to its carbon footprint and what steps can be taken to reduce this impact on the environment?

asked Feb 22 in Environmental Chemistry

1 answer 84 views

What is the mechanism of nucleophilic substitution reaction for the conversion of 2-bromobutane to 2-butanol using sodium hydroxide as a nucleophile?

asked Feb 20 in Organic Chemistry

1 answer 75 views

What is the coordination geometry of the iron center in the active site of hemoglobin, and how does this geometry affect the binding of oxygen?

asked Feb 19 in Coordination Chemistry

1 answer 80 views

How does the coordination chemistry of metalloproteins and metalloenzymes influence their functionality in biological systems?

answered Feb 19 in Coordination Chemistry

1 answer 76 views

How does the chemical nature of amino acid side chains contribute to the specificity and stability of DNA-protein interactions?

answered Feb 18 in BioChemistry

1 answer 83 views

What is the impact of different types of microplastics (e.g. polyethylene, polypropylene, nylon) on the growth and development of marine organisms such as phytoplankton and zooplankton?

answered Feb 13 in Environmental Chemistry

1 answer 153 views

How does doping with nitrogen or other heteroatoms affect the electrical, mechanical, and thermal properties of graphene, and how can these properties be optimized for use in high-performance electronic devices?

asked Feb 12 in Materials Chemistry

1 answer 90 views

How can the synthesis of polystyrene from styrene monomer be optimized in terms of reaction conditions such as temperature, pressure, and catalyst choice to increase the yield and purity of the final product?

answered Feb 11 in Chemical synthesis

1 answer 81 views

How can the ionic conductivity of polymer electrolytes be improved for use in high-performance batteries?

asked Feb 7 in Polymer Chemistry

1 answer 91 views

How can computational chemistry tools be used to identify novel inhibitors for specific protein-protein interactions involved in a certain disease pathway? Specifically, using molecular docking studies, can the interactions between the two proteins be analyzed and potential small molecule inhibitors be identified and characterized for their efficacy and specificity?

asked Feb 5 in Computational Chemistry

1 answer 123 views

Calculate the standard enthalpy change for the formation of carbon dioxide (CO2) from its elements, given the following standard enthalpies of formation:ΔHf°(CO2) = -393.5 kJ/molΔHf°(C) = 0 kJ/molΔHf°(O2) = 0 kJ/mol

asked Feb 3 in Chemical thermodynamics

1 answer 134 views

What is the role of carbohydrate-protein interactions in the recognition of cell surface receptors and how does the specific structure of carbohydrates contribute to this recognition process?

answered Jan 31 in BioChemistry

1 answer 122 views

What is the reactivity of an alkyne compared to an alkane or alkene, and how can this reactivity be utilized in organic synthesis reactions? Provide an example reaction that demonstrates this reactivity.

answered Jan 31 in Organic Chemistry

1 answer 89 views

A sample of nitrogen dioxide is placed in a container at 250°C and 1 atm, where it decomposes according to the following equation: 2NO2(g) ↔ 2NO(g) + O2(g)The initial concentration of NO2 is 0.10 M, and the equilibrium constant (Kc) at this temperature is 4.0 x 10^-3. If the volume of the container is suddenly decreased to one-half of its original volume, causing the pressure to double, what will happen to the amount of NO and O2 present at equilibrium? Calculate the new equilibrium concentrations of NO and O2.

asked Jan 22 in Chemical equilibrium

1 answer 97 views

What is the identity of an unknown organic compound that gives a strong absorption peak at 1700 cm^-1 in its infrared spectrum?

asked Jan 21 in Organic Chemistry

1 answer 71 views

What are some applications of discursive psychology?

asked Jan 20 in Psychology

1 answer 76 views

What are the two types of photoreceptors in the human eye?

answered Jan 20 in Psychology

1 answer 140 views

According to the humanistic approach, what is the fundamental motive of human behaviour?

answered Jan 20 in Psychology

1 answer 122 views

Why is it important to practice self-reflection when it comes to setting and enforcing boundaries?

asked Jan 20 in Psychology

1 answer 98 views

Why is resilience important in mental health?

asked Jan 20 in Psychology

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