Recent activity by MireyaFlaher

1 answer 82 views

How does the size and orientation of the organic cation affect the electronic and optical properties of perovskite materials?

answered Feb 24 in Quantum Chemistry

1 answer 83 views

How does the selectivity of hydrocarbon oxidation on metal surfaces change with respect to changes in temperature and gas composition?

answered Feb 24 in Surface Chemistry

1 answer 80 views

What is the molecular geometry of a water molecule (H2O) and what is the bond angle between the two hydrogen atoms and the oxygen atom?

asked Feb 21 in Chemical bonding

1 answer 81 views

How does the regulation of the glycolytic pathway differ in a healthy cell compared to a cancer cell?

answered Feb 20 in BioChemistry

1 answer 77 views

How does the electronic structure of a molecule affect its molecular geometry?

answered Feb 20 in Physical Chemistry

1 answer 79 views

What is the rate law expression for the reaction between hydrogen and oxygen gasses to form water, and what is the overall order of the reaction?

asked Feb 17 in Physical Chemistry

1 answer 72 views

How does the process of protein degradation and turnover differ between normal cells and cancer cells, and how can this information be utilized in the development of targeted cancer therapies?

answered Feb 14 in BioChemistry

1 answer 74 views

How does the drug metformin work in treating type 2 diabetes and what specific biochemical pathways does it interact with?

asked Feb 13 in Medicinal Chemistry

1 answer 166 views

What is the effect of combining ibuprofen and aspirin on the blood-thinning properties of aspirin?

asked Feb 12 in Medicinal Chemistry

1 answer 92 views

How can the physical and chemical properties of a drug be optimized to enhance its efficacy in drug delivery systems?

asked Feb 10 in Medicinal Chemistry

1 answer 93 views

How can the efficiency of a surfactant production system be optimized by adjusting the reaction conditions and reactor design parameters?

asked Feb 7 in Chemical engineering

1 answer 77 views

How can chemistry educators improve the emphasis on practical applications of chemistry in the classroom to better prepare students for future careers in the field?

asked Feb 4 in Chemical education

1 answer 145 views

Calculate the standard enthalpy of formation of glucose (C6H12O6) given that the standard enthalpies of combustion for glucose, carbon, and hydrogen are -2803.6 kJ/mol, -393.5 kJ/mol, and -285.8 kJ/mol, respectively.

asked Feb 3 in ThermoChemistry

1 answer 93 views

Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid and sodium hydroxide, given the balanced chemical equation: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) and the enthalpy change of formation values: ∆Hf°(NaCl(aq)) = -407.3 kJ/mol ∆Hf°(H2O(l)) = -285.83 kJ/mol ∆Hf°(HCl(aq)) = -167.2 kJ/mol ∆Hf°(NaOH(aq)) = -469.11 kJ/mol

asked Feb 3 in Chemical thermodynamics

1 answer 168 views

Calculate the standard enthalpy change (ΔH°), standard entropy change (ΔS°) and standard Gibbs free energy change (ΔG°) of the reaction:2A(g) + 3B(g) → C(g) + 2D(g)given thatΔH°f[A(g)] = 200 kJ mol^-1Δ H°f [B(g)] = 100 kJ mol^-1Δ H°f [C(g)] = 400 kJ mol^-1Δ H°f [D(g)] = 0 kJ mol^-1ΔH°= -400 kJ mol^-1Temperature (T) = 298 KThe student needs to use their knowledge in quantum chemistry and thermodynamics to calculate the thermodynamic properties of the given reaction.

asked Feb 3 in Quantum Chemistry

1 answer 116 views

How can a chemical engineer design a process for the purification of a specific chemical compound, taking into account its physical and chemical properties, and ensuring maximum yield and purity while minimizing waste and cost?

answered Jan 30 in Chemical engineering

1 answer 97 views

What type of chemical bond will form between an atom of potassium and an atom of chlorine, and what is the percentage ionic character of this bond?

answered Jan 30 in Chemical bonding

1 answer 81 views

How can gas chromatography be used to analyze the composition of a mixture of alcohol and water?

answered Jan 29 in Analytical Chemistry

1 answer 91 views

Calculate the amount of energy required to melt 50 grams of ice at 0°C, given the enthalpy of fusion for water is 6.01 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 97 views

What is the goal of the social identity theory?

asked Jan 20 in Psychology

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