Recent activity by ValeriaStrom

1 answer 27 views

How does the size and shape of gold nanoparticles affect their surface plasmon resonance (SPR) properties?

1 answer 31 views

How does the size and shape of a catalyst affect its activity in a density functional theory calculation of a catalytic reaction?

answered Feb 24 in Computational Chemistry

1 answer 29 views

What is the effect of changes in pH on the reaction rate between hydrochloric acid (HCl) and magnesium (Mg)?

asked Feb 22 in Chemical kinetics

1 answer 23 views

How does the photochemical activity of luminescent materials vary with changes in their composition and structure?

asked Feb 22 in PhotoChemistry

1 answer 29 views

What is the relationship between the optical properties of molecules and their electronic excited states, and how can these properties be calculated using quantum chemistry methods? Provide specific examples of molecules and their electronic transitions.

answered Feb 21 in Quantum Chemistry

1 answer 38 views

What is the predicted geometry and polarity of the NO<sub>2</sub><sup>-</sup> ion?

asked Feb 21 in Inorganic Chemistry

1 answer 31 views

What is the enthalpy of formation of magnesium oxide (MgO) given the enthalpy of formation of magnesium (Mg) is -601 kJ/mol and the enthalpy of formation of oxygen (O2) is 0 kJ/mol?

answered Feb 20 in ThermoChemistry

1 answer 21 views

How does the coordination chemistry of metalloproteins influence their function in biological systems? Provide specific examples of metalloproteins and their coordination chemistry.

answered Feb 19 in Coordination Chemistry

1 answer 42 views

How does the co-administration of Warfarin and Aspirin affect the pharmacokinetics of each drug and what potential risks may arise from this drug-drug interaction?

answered Feb 18 in Medicinal Chemistry

1 answer 41 views

How can the synthesis of zeolites be optimized to ensure maximum purity, uniformity, and reproducibility of these materials?

asked Feb 14 in Materials Chemistry

1 answer 28 views

What is the mechanism of action and chemical signaling pathways of the hormone insulin in the regulation of glucose metabolism in the body?

asked Feb 13 in BioChemistry

1 answer 93 views

What are the mechanical properties of hydrogels used in tissue engineering and how can they be optimized to improve their biocompatibility and promote cell growth and differentiation?

asked Feb 13 in Materials Chemistry

1 answer 46 views

How do genetic variations affect the metabolism and effectiveness of drugs used in the treatment of diabetes, and what are the implications of this for personalized medicine?

asked Feb 13 in Medicinal Chemistry

1 answer 62 views

How can we design drugs that target specific genetic mutations responsible for causing inherited diseases, such as cystic fibrosis or sickle cell anemia, while avoiding off-target effects on healthy cells?

asked Feb 12 in Medicinal Chemistry

1 answer 35 views

How can the efficiency and sustainability of the process for the production of fertilizers be improved, while minimizing environmental impact and reducing costs?

answered Feb 7 in Chemical engineering

1 answer 99 views

Design a chemical reactor for the reaction A + B --> C at a rate of 2 moles/min, with a reaction temperature of 300°C and a pressure of 3 atm. The reaction is exothermic and has a heat of reaction of -200 kJ/mol. The reactants A and B are fed into the reactor at a flow rate of 1 mole/min each. Choose the appropriate reactor design and calculate the volume needed to achieve a conversion of 95%.

asked Feb 3 in Chemical engineering

1 answer 141 views

What strategies can a student use to improve their preparation for chemistry exams and achieve better results?

answered Jan 30 in Chemical education

1 answer 114 views

How can we quantify the concentration of lead (Pb) ions in a water sample using polarography?

answered Jan 30 in Analytical Chemistry

1 answer 70 views

Calculate the enthalpy change for the isomerization reaction of butene-1 to cis-2-butene. Given that the standard enthalpy of formation for butene-1 is -19.8 kJ/mol and for cis-2-butene is -20.4 kJ/mol, and the standard enthalpy of combustion for butene-1 is -2876 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 131 views

Assuming that the volume of the system is constant, how will the equilibrium concentration of reactants and products be affected if the temperature is increased for the following reaction: 2 SO2(g) + O2(g) ⇌ 2 SO3(g) (a) Predict the direction of the reaction shift and explain why(b) Predict the effect of the temperature change on the equilibrium value of Kc for the reaction.

asked Jan 22 in Chemical equilibrium

Recent activity by ValeriaStrom

Categories