Recent activity by TinaKesler6

1 answer 27 views

How does the size and shape of nanoparticles affect their catalytic activity in chemical reactions?

1 answer 31 views

How does the molecular structure of a photovoltaic material affect its photochemical properties and ultimately, its efficiency in converting sunlight into electrical energy?

asked Feb 21 in PhotoChemistry

1 answer 31 views

What is the electronegativity difference between oxygen and nitrogen atoms in a molecule of NO2?

asked Feb 20 in Chemical bonding

1 answer 29 views

How does the coordination chemistry of metalloproteins affect their enzymatic activity in the presence of metal ions like heme, iron-sulfur clusters, and copper ions, and how do these metal ions assist in catalytic reactions in metalloproteins?

asked Feb 19 in Coordination Chemistry

1 answer 29 views

What is the bond dissociation energy required to break the C-H bond in methane (CH4)?

answered Feb 18 in ThermoChemistry

1 answer 50 views

What is the effect of increasing the pH of a solution containing the redox system, Fe2+/ Fe3+ on the equilibrium concentration of Fe2+ at 25°C?

answered Feb 13 in Chemical equilibrium

1 answer 30 views

How does the regulation of glycolysis and gluconeogenesis differ in the liver compared to other tissues in the body? Provide examples of signaling pathways and enzymes involved in this regulation.

answered Feb 13 in BioChemistry

1 answer 34 views

How do the photochemical properties of enantiomers differ from one another and how can this information be utilized in designing new chiral molecules with specific optical properties?

answered Feb 13 in PhotoChemistry

1 answer 44 views

How can we design drugs that specifically target and kill cancer cells while leaving healthy cells intact?

answered Feb 12 in Medicinal Chemistry

1 answer 74 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 98 views

What are the key chemical compounds and their ratios required to produce a long-lasting and captivating fragrance, and how can the manufacturing process be optimized to maximize yield with minimal waste?

asked Feb 12 in Chemical engineering

1 answer 84 views

How does the presence of CFCs in the atmosphere lead to depletion of the ozone layer, and what are some potential solutions to prevent further damage?

answered Feb 12 in Environmental Chemistry

1 answer 29 views

How can the chemical engineering principles be utilized to develop a cost-effective and efficient process for the production of detergents with minimal environmental impact?

asked Feb 6 in Chemical engineering

1 answer 72 views

Calculate the standard enthalpy change for the reaction between 2.00 moles of liquid ethanol (C2H5OH) and 3.50 moles of gaseous oxygen (O2) to form carbon dioxide (CO2) gas and liquid water (H2O) at 25°C and standard pressure. The balanced chemical equation for the reaction is C2H5OH + 3O2 → 2CO2 + 3H2O. (The molar enthalpies of formation for C2H5OH, CO2, and H2O are -277.6 kJ/mol, -393.5 kJ/mol, and -285.8 kJ/mol, respectively.)

answered Feb 3 in Chemical thermodynamics

1 answer 67 views

What is the effect of changing the concentration of one reactant on the initial rate and final yield of a chemical reaction, and how does this relate to the reaction mechanism?

asked Feb 3 in Chemical kinetics

1 answer 78 views

What is the coordination number of the metal ion in the active site of carbonic anhydrase, given its crystal structure and the ligands present?

asked Jan 31 in Coordination Chemistry

1 answer 113 views

What is the vibrational frequency and infrared spectrum of the carbon dioxide (CO2) molecule using Quantum Chemistry calculations and which type of vibrational modes does it demonstrate?

answered Jan 31 in Quantum Chemistry

1 answer 79 views

How does acid rain affect the pH levels of freshwater streams, and what chemical reactions occur when acid rain interacts with aquatic organisms?

answered Jan 30 in Environmental Chemistry

1 answer 29 views

How can a chemical engineer optimize the production process of flavors by designing a system that maximizes yield and minimizes waste, while maintaining the desired quality and purity of the final product?

asked Jan 30 in Chemical engineering

1 answer 70 views

Calculate the change in entropy of the system when 2 moles of ammonia react to form 3 moles of hydrogen gas and 1 mole of nitrogen gas. The reaction takes place at a constant temperature of 298 K and at a pressure of 1 atm. The molar entropy of each component in the reaction is given below:Ammonia: 192.5 J/K·molHydrogen gas: 130.6 J/K·molNitrogen gas: 191.6 J/K·mol

asked Jan 23 in Chemical thermodynamics

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