Recent activity by MellisaOlivo

1 answer 32 views

What is the predicted effect on the equilibrium position when the pressure is increased in a closed chemical system that contains a mixture of hydrogen gas and nitrogen gas, forming ammonia gas? How can this effect be experimentally verified?

answered Feb 22 in Chemical equilibrium

1 answer 35 views

What is the rate constant and mechanism for the reaction between hydrogen gas and iodine gas to form hydrogen iodide? Can the reaction be catalyzed and, if so, what would be the effect on the rate of the reaction?

asked Feb 22 in Quantum Chemistry

1 answer 34 views

What is the role of the excited state in the mechanism of photochemical reactions in organic compounds? How does it impact the selectivity and efficiency of the reaction?

asked Feb 20 in PhotoChemistry

1 answer 44 views

How does the design of self-assembled supramolecular structures impact their stability and functionality? What are the key factors that influence the self-assembly of supramolecular architectures and how can they be optimized for specific applications?

asked Feb 19 in Physical Chemistry

1 answer 40 views

What is the mechanism for the conversion of a carboxylic acid to its corresponding acid chloride using thionyl chloride? Provide the balanced chemical equation and explain the reaction step by step.

answered Feb 19 in Organic Chemistry

1 answer 26 views

What is the mechanism of conversion of a carboxylic acid into its corresponding acid chloride using thionyl chloride and how can this reaction be utilized in the synthesis of esters?

asked Feb 19 in Organic Chemistry

1 answer 30 views

How does the choice of solvent affect the rate of reaction between sodium chloride and silver nitrate?

asked Feb 18 in Chemical kinetics

1 answer 31 views

What factors determine the bond strength of a molecule, and how can we predict these strengths? Provide examples to illustrate your answer.

asked Feb 18 in Chemical bonding

1 answer 29 views

What is the activation energy of an electrochemical reaction involving the oxidation of copper on a platinum electrode, if the reaction rate constant at 25°C is 2.5 x 10^-4 mol L^-1 s^-1 and the activation energy for the reaction is 64 kJ/mol?

asked Feb 17 in ElectroChemistry

1 answer 32 views

What is the mechanism and intermediates involved in the acid-catalyzed hydration of an alkene like 2-methylpropene to form 2-methylpropan-2-ol?

asked Feb 17 in Organic Chemistry

1 answer 37 views

What are the photochemical properties of a specific type of photochromic material and how do these properties affect its ability to change color upon exposure to light?

answered Feb 14 in PhotoChemistry

1 answer 40 views

What factors affect the phosphorescence efficiency of phosphorescent materials?

asked Feb 14 in PhotoChemistry

1 answer 61 views

What is the effect of ligand substitution on the photochemical properties of coordination compounds? Provide specific examples and discuss the underlying principles involved.

asked Feb 13 in PhotoChemistry

1 answer 70 views

How can the production of fragrances be optimized to reduce waste and increase yield using principles of chemical engineering?

asked Feb 10 in Chemical engineering

1 answer 62 views

How can the principles of quantum mechanics be applied to develop efficient algorithms for quantum computers, and what impact could this have on the field of chemistry, particularly in the areas of molecular modeling and simulation?

asked Feb 10 in Quantum Chemistry

1 answer 78 views

Calculate the standard enthalpy change for the transition of liquid water at 100°C to steam at the same temperature, given that the enthalpy of vaporization of water is 40.7 kJ mol-1.

asked Feb 3 in Chemical thermodynamics

1 answer 107 views

How does a specific metabolite pathway influence the behavior of cancer cells in response to chemotherapy?

asked Jan 30 in BioChemistry

1 answer 71 views

How can the composition of a sample be determined using X-ray diffraction analysis and what specific information can be obtained from the analysis?

answered Jan 29 in Analytical Chemistry

1 answer 81 views

Calculate the bond energy required to break the bond between atoms A and B in a molecule of AB, given the following information: the bond length between A and B is 0.1 nm and the energy required to break one mole of AB molecules is 500 kJ/mol.

answered Jan 23 in Chemical reactions

1 answer 70 views

A droplet of water weighing 0.2 grams is placed on the surface of a perfectly clean glass plate. The diameter of the droplet is measured to be 5 mm. Calculate the surface tension of water in dynes/cm.

asked Jan 22 in Surface Chemistry

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