Recent activity by jozzpfdeimmyapm

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How does the size and shape of a nanomaterial affect its electronic and optical properties, and how can these properties be calculated using quantum chemistry methods?

asked 1 day ago in Quantum Chemistry

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What is the balanced chemical equation for the reaction of aniline and chlorine gas to prepare 2-chloro-4-nitroaniline, and what is the percent yield of the reaction if 10 grams of aniline is used and 7 grams of the product is obtained?

asked 3 days ago in Chemical synthesis

1 answer 24 views

How does the pH of acid rain affect the growth and survival of aquatic organisms in streams and lakes, and what can be done to mitigate these effects?

answered 3 days ago in Environmental Chemistry

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What is the effect of adding different electron-donating and electron-withdrawing groups to the polymer backbone on the performance of polymer-based photovoltaic materials?

answered 3 days ago in Polymer Chemistry

1 answer 19 views

What are the possible resonance structures of the nitrate ion (NO3-)? Show the correct arrangement of electrons and the placement of double bonds in each resonance structure.

asked 3 days ago in Chemical bonding

1 answer 18 views

How does the length of a conjugated polymer chain affect its electronic and optical properties, and how can this be optimized for improved device performance in organic electronics?

asked 5 days ago in Quantum Chemistry

1 answer 18 views

What is the coordination number and geometry of the iron ion in the heme group of myoglobin? How does this coordination contribute to the function of myoglobin as an oxygen carrier in the body?

answered 5 days ago in Coordination Chemistry

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How does the hydrogen bonding between nucleotide bases affect the stability of the double helix structure of DNA? Provide a detailed explanation with relevant examples.

answered 5 days ago in BioChemistry

1 answer 30 views

What is the enthalpy change of adsorption when 10 grams of activated charcoal absorb 1 mole of methane gas at a temperature of 298 K? Given that the van't Hoff factor for the adsorption of methane on activated charcoal is 10.5 kJ/mol.

asked 5 days ago in ThermoChemistry

1 answer 18 views

What is the effect of changing the concentration of reactants on the reaction rate in the reaction between sodium thiosulphate and hydrochloric acid?

asked 6 days ago in Chemical kinetics

1 answer 27 views

What is the bond energy required to break a single bond between two carbon atoms in a molecule of ethane (C2H6)?

answered Feb 18 in Chemical reactions

1 answer 22 views

What is the balanced chemical equation for the synthesis of water (H2O) from its elements hydrogen (H2) and oxygen (O2)?

asked Feb 17 in Chemical reactions

1 answer 31 views

How do the specific binding interactions between carbohydrates and proteins differ from non-specific interactions? Provide specific examples of each and explain the implications of these differences in biological systems.

asked Feb 14 in BioChemistry

1 answer 29 views

What are the mechanical and thermal properties of polymer-based composites used in aerospace applications, and how do they compare to traditional metal alloys?

answered Feb 14 in Polymer Chemistry

1 answer 31 views

How does plasma treatment affect the surface properties and wettability of biomaterials used in medical implant devices?

asked Feb 14 in Surface Chemistry

1 answer 8 views

How can we utilize nanotechnology to optimize drug delivery systems for improved efficacy in the treatment of cancer?

asked Feb 13 in Medicinal Chemistry

1 answer 39 views

How to design a feasible and economical system that produces pure hydrogen fuel with a high yield while minimizing energy consumption, by utilizing the principles of chemical engineering and taking into account the potential impact on the environment?

answered Feb 12 in Chemical engineering

1 answer 9 views

What is the coordination geometry and oxidation state of the metal ion in the active site of the metalloenzyme cytochrome c oxidase?

asked Feb 12 in Coordination Chemistry

1 answer 53 views

How can the sensitivity and response time of a polymer-based sensor be improved for detecting harmful gases in industrial settings?

answered Feb 10 in Polymer Chemistry

1 answer 10 views

How can the magnetic properties of various materials be analyzed to determine their suitability for use in high capacity data storage media?

asked Feb 7 in Materials Chemistry

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