Recent activity by LesleyTharp

1 answer 20 views

How does the reaction rate of a chemical reaction change with respect to the concentration of one reactant, while keeping the other reactants and conditions constant?

asked 1 day ago in Chemical kinetics

1 answer 27 views

What is the predicted molecular geometry of a molecule of XeF4, and what is the hybridization of the central atom?

answered 3 days ago in Chemical bonding

1 answer 20 views

How does the mechanism of a photochemical reaction in organic compounds differ from a thermal reaction, and what factors influence the efficiency of the photochemical reaction?

answered 5 days ago in PhotoChemistry

1 answer 19 views

What is the enthalpy change (in kJ/mol) for the combustion of methane, CH4(g), given the following thermochemical equation:CH4(g) + 2 O2(g) -> CO2(g) + 2 H2O(l)ΔHrxn = -890.3 kJ/mol

asked 5 days ago in ThermoChemistry

1 answer 21 views

How does the degree of polymerization affect the physical properties of polystyrene, specifically its melting point and glass transition temperature?

asked 6 days ago in Physical Chemistry

1 answer 18 views

What is the critical micelle concentration of sodium dodecyl sulfate in an aqueous solution at a temperature of 25°C?

asked 6 days ago in Surface Chemistry

1 answer 19 views

What is the balanced equation for the synthesis reaction of methane and oxygen gas to form carbon dioxide and water vapor when the reaction is initiated with a spark?

answered Feb 17 in Chemical reactions

1 answer 27 views

How to predict the crystal structure of inorganic solids having high symmetry and complex bonding environments?

asked Feb 14 in Inorganic Chemistry

1 answer 18 views

How can we optimize the process parameters for the production of biofuels using heterogeneous catalysts for maximum yield and selectivity?

answered Feb 14 in Chemical engineering

1 answer 38 views

How do metal ions coordinate with the amino acid residues in metalloenzymes and metalloproteins to carry out their biological functions and what are the factors that influence the coordination preferences of the metal ions?

asked Feb 13 in Coordination Chemistry

1 answer 34 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 12 views

How can college chemistry courses be better designed to prepare students for chemistry-related careers, such as analytical chemistry or materials science, in order to reduce the skills gap between academic training and industry expectations?

asked Feb 6 in Chemical education

1 answer 28 views

How can improving the polymer electrolyte in a lithium-ion battery affect its performance and stability over time?

answered Feb 5 in Polymer Chemistry

1 answer 40 views

How can photochemical processes be utilized to degrade pollutants in the environment such as organic compounds and heavy metals, and what are the factors that affect the efficiency of the degradation process?

answered Feb 5 in PhotoChemistry

1 answer 9 views

Considering the Coordination chemistry of transition metals, how would increasing the size of the ligands affect the stability of a coordination compound?

asked Feb 3 in Coordination Chemistry

1 answer 12 views

Calculate the standard enthalpy change for the vaporization of 1 mole of water at 100°C and 1 atm pressure. The enthalpy of formation of liquid water is -285.8 kJ/mol and the enthalpy of formation of water vapor is -241.8 kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 45 views

Calculate the standard enthalpy change for the phase transition reaction from solid to liquid for a sample of substance X, given that the mass of the sample is 10 grams and the melting point of substance X is 50°C. The specific heat capacity of substance X is 2 J/g°C and the enthalpy of fusion for substance X is 50 J/g.

answered Feb 3 in Chemical thermodynamics

1 answer 76 views

How do carbohydrates interact with proteins and what chemical properties govern these interactions?

asked Jan 31 in BioChemistry

1 answer 59 views

How effective are the current environmental regulations in preventing air pollution from industrial sources in your local area?

asked Jan 31 in Environmental Chemistry

1 answer 92 views

What is the phase diagram of water and how does pressure and temperature affect the phase transition between solid, liquid, and gas phases?

answered Jan 30 in Physical Chemistry

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