Recent activity by Dannie89E20

1 answer 36 views

What are the factors that influence the phosphorescent properties of organic molecules in photochemistry?

asked Feb 22 in PhotoChemistry

1 answer 33 views

How does the length of the polymer chain affect the conformational properties of a polyethylene molecule, as determined by Monte Carlo simulations?

asked Feb 20 in Computational Chemistry

1 answer 26 views

Identify the type of inorganic solid formed by the following elements: sodium and chlorine.

answered Feb 20 in Inorganic Chemistry

1 answer 27 views

How does the electronic configuration of a metallic element affect its reactivity with non-metallic elements in forming inorganic compounds?

answered Feb 20 in Inorganic Chemistry

1 answer 34 views

What is the effect of changing the pH on the equilibrium concentration of the complex ion Fe(CN)6 4- ? Provide a detailed explanation of the process involved in predicting the effect and the factors that influence the equilibrium.

asked Feb 19 in Chemical equilibrium

1 answer 22 views

What is the effect of changing the concentration of reactants on the reaction rate and how does it differ for reactions with different mechanisms?

answered Feb 19 in Chemical kinetics

1 answer 39 views

How does the equilibrium position of a reaction (such as the dissociation of acetic acid) change with varying pH? Provide an explanation for the observed shift in equilibrium position with respect to Le Chatelier's principle.

answered Feb 19 in Chemical equilibrium

1 answer 34 views

What are the possible geometric isomers of the complex ion [Co(NH3)4Br2]+ and how can you distinguish between them experimentally?

answered Feb 18 in Coordination Chemistry

1 answer 38 views

How does the binding affinity of a protein-ligand complex change with varying pH values using molecular dynamics simulations?

asked Feb 17 in Computational Chemistry

1 answer 35 views

What is the predicted boiling point of a substance that has predominantly London dispersion forces and exhibits a molar mass of 120 g/mol?

answered Feb 14 in Chemical bonding

1 answer 30 views

How does Molecular Dynamics simulation help in studying the complex formation of host-guest systems in supramolecular chemistry?

asked Feb 13 in Computational Chemistry

1 answer 67 views

What is the coordination number of Uranium in [UO2Cl4]2- complex, and what is the oxidation state of Uranium?

asked Feb 13 in Coordination Chemistry

1 answer 71 views

How does exposure to particulate matter in polluted air affect human respiratory health in terms of lung function and risk of respiratory diseases such as asthma and lung cancer?

answered Feb 13 in Environmental Chemistry

1 answer 35 views

How can the efficiency of the system for the production of hydrogen fuel be improved to reduce the overall cost of hydrogen fuel production?

asked Feb 7 in Chemical engineering

1 answer 42 views

How can fertilizer management practices be improved to minimize environmental pollution while increasing crop production in sustainable agriculture?

asked Feb 5 in Environmental Chemistry

1 answer 35 views

How can chemistry educators adapt their teaching methods to encourage meaningful learning and engagement for students in situations where hands-on experimentation is limited?

asked Feb 4 in Chemical education

1 answer 75 views

Consider an electrochemical cell containing a copper electrode in a 0.5 M CuSO4 solution and a silver electrode in a 1.0 M AgNO3 solution. Calculate the current density at a temperature of 25°C given that the copper electrode has a surface area of 5 cm² and the silver electrode has a surface area of 10 cm². The standard reduction potentials for Cu²⁺ and Ag⁺ are -0.34 V and 0.80 V, respectively. Use the Nernst equation to calculate the cell potential and then use Ohm's law to calculate the current density.

answered Feb 3 in ElectroChemistry

1 answer 84 views

Calculate the standard enthalpy change for the reaction of the coordination compound Cu(NH3)4SO4 with excess NaOH to form Cu(OH)2(s), NH3(g), Na2SO4(aq), and H2O(l) at a constant pressure of 1 atm and a temperature of 25°C.

answered Feb 3 in Chemical thermodynamics

1 answer 96 views

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

answered Jan 31 in BioChemistry

1 answer 110 views

How does air pollution contribute to the development of respiratory diseases in humans? Specifically, what are the chemical mechanisms involved in the formation of pollutants and their effects on human lung tissue?

answered Jan 31 in Environmental Chemistry

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