Recent activity by JeremiahMoli

1 answer 24 views

How does an increase in pressure affect the rate of the reaction between hydrogen gas and iodine vapor, given the chemical equation H2(g) + I2(g) ⇌ 2HI(g)?

answered Feb 22 in Chemical kinetics

1 answer 29 views

How do the photochemical properties of supramolecular assemblies differ from those of individual molecules and how can this knowledge be applied in the design of novel light-responsive materials?

answered Feb 22 in PhotoChemistry

1 answer 21 views

What is the mechanism of electrophilic addition reaction of chlorine with ethene? Draw the reaction mechanism and identify the major product formed.

answered Feb 20 in Organic Chemistry

1 answer 29 views

What is the bond dissociation energy of the carbon-hydrogen bond in methane (CH4), given that the bond enthalpy of the C-H bond is 413 kJ/mol?

asked Feb 18 in Chemical bonding

1 answer 32 views

How does the binding of specific amino acids in one protein affect the formation and stability of a protein-protein complex?

asked Feb 17 in BioChemistry

1 answer 27 views

What is the specific role of Rubisco in the process of carbon fixation in photosynthesis, and how does its efficiency vary under different environmental conditions?

answered Feb 14 in BioChemistry

1 answer 35 views

How do the photochromic properties of a material change under different light intensities, and what is the mechanism behind these changes?

asked Feb 14 in PhotoChemistry

1 answer 32 views

How does phosphorylation affect the activation of enzymes in the MAP Kinase signaling pathway and what is the role of ATP in this process?

answered Feb 14 in BioChemistry

1 answer 33 views

How can we optimize the synthesis of silver nanoparticles using green chemistry methods?

asked Feb 14 in Materials Chemistry

1 answer 28 views

How do the photochemical properties of enantiomers differ and what effect does this have on their reactivity and reaction outcomes?

answered Feb 13 in PhotoChemistry

1 answer 39 views

How can we design drugs to target specific enzymes or pathways involved in metabolic disorders such as diabetes or obesity, while avoiding off-target effects on other essential biological processes?

answered Feb 12 in Medicinal Chemistry

1 answer 29 views

How can the synthesis of polymer-based superabsorbent materials be optimized to increase their water absorbing capacity and retention time?

asked Feb 11 in Polymer Chemistry

1 answer 73 views

Design a polymer-based sensor for detecting the presence of ethanol in aqueous solutions, and provide a detailed explanation of the principles behind its operation.

answered Feb 4 in Polymer Chemistry

1 answer 69 views

Calculate the standard electrode potential for the oxidation of Fe2+ ions to Fe3+ ions using the half-reactions and their respective standard electrode potentials. Show the balanced chemical equation for the overall reaction and determine if the reaction is spontaneous or non-spontaneous at standard conditions.

answered Feb 3 in Chemical thermodynamics

1 answer 115 views

What effects do changes in pH have on the activity of the enzyme catalase during the breakdown of hydrogen peroxide?

answered Jan 31 in BioChemistry

1 answer 63 views

How can electrophoresis be utilized to determine the relative proportions and molecular weights of proteins within a given sample?

answered Jan 29 in Analytical Chemistry

1 answer 64 views

Calculate the heat of crystallization when 10.0 g of sodium acetate trihydrate (NaCH3COO.3H2O) is dissolved in 100.0 mL of water at 25°C and the solution is allowed to cool to 15°C. The specific heat capacity of the solution is 4.18 J/g °C and the density of the solution is 1.0 g/mL. The heat of solution of sodium acetate trihydrate is -7126 J/mol.

asked Jan 23 in ThermoChemistry

1 answer 74 views

Calculate the heat (in kJ/mol) evolved when 1 mole of hydrogen gas is adsorbed on a surface if the enthalpy of adsorption for hydrogen is -30 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 83 views

Calculate the equilibrium constant (Kc) for the reaction between nitrogen gas (N2) and hydrogen gas (H2) to form ammonia gas (NH3) at a temperature of 400 K. The reaction is written as follows: N2(g) + 3H2(g) ⇌ 2NH3(g) Given the equilibrium concentrations are [N2] = 0.10 M, [H2] = 0.20 M, and [NH3] = 1.0 M.

asked Jan 23 in Chemical thermodynamics

1 answer 81 views

Calculate the enthalpy change of isomerization for the reaction of cyclopropane to propene given that the standard enthalpy of formation of cyclopropane is -119.1 kJ/mol and the standard enthalpy of formation of propene is -103.8 kJ/mol. Assume that the enthalpy change of vaporization for both compounds is negligible.

asked Jan 23 in ThermoChemistry

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