Recent activity by LorrineA1626

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How does the metabolic profile of a drug affect its efficacy and toxicity in the human body?

1 answer 29 views

What is the electronic band structure of a graphene sheet using density functional theory calculations and how does it compare to the experimental results?

asked Feb 20 in Computational Chemistry

1 answer 33 views

What is the coordination number of actinide ion [Pu(NO3)6]2-?

asked Feb 19 in Coordination Chemistry

1 answer 31 views

What is the coordination geometry of a [Co(NH3)6]3+ complex, and how can this be determined using spectroscopic techniques such as UV-vis and IR spectroscopy?

answered Feb 19 in Coordination Chemistry

1 answer 24 views

What is the effect of changing the concentration of an inorganic compound on its conductivity?

asked Feb 19 in Inorganic Chemistry

1 answer 34 views

How does the choice of polymer affect the mechanical properties and printability of 3D printed objects?

asked Feb 18 in Polymer Chemistry

1 answer 32 views

What is the boiling point of potassium nitrate (KNO3) at a pressure of 760 mm Hg?

asked Feb 17 in Inorganic Chemistry

1 answer 27 views

What is the effect of pH on the activity of the enzyme catalase found in potatoes?

answered Feb 17 in BioChemistry

1 answer 31 views

What are the resonance structures of the ozone molecule (O3)? Draw each resonance form and identify the bond lengths and bond orders in each form.

answered Feb 14 in Chemical bonding

1 answer 35 views

What is the most effective method to synthesize a biodegradable polymer using natural resources and renewable feedstocks, and what are the chemical properties of the resulting polymer?

asked Feb 14 in Polymer Chemistry

1 answer 66 views

What is the heat of hydration of magnesium sulfate, MgSO4, when 45 grams of the anhydrous salt is dissolved in 250 mL of water? The molar heat of hydration of MgSO4 is -138.5 kJ/mol.

answered Feb 13 in ThermoChemistry

1 answer 71 views

How do different metabolites of a specific drug affect its potency and toxicity in the body, and how can medicinal chemists use this information to optimize drug design and minimize unwanted side effects?

answered Feb 12 in Medicinal Chemistry

1 answer 43 views

How can the synthesis and characterization of new materials improve the efficiency and durability of fuel cells in generating green energy?

asked Feb 11 in Materials Chemistry

1 answer 82 views

How can the properties of ceramics be modified to optimize their performance in high-temperature applications such as furnace linings and gas turbine components?

asked Feb 10 in Materials Chemistry

1 answer 31 views

How can the performance of polymer-based coatings and paints be improved for better adhesion, durability, and corrosion resistance?

asked Feb 10 in Polymer Chemistry

1 answer 32 views

How can the knowledge of the molecular structure and lifecycle of a specific virus be utilized to design drugs that selectively target and inhibit viral replication, while leaving healthy cells unharmed?

answered Feb 7 in Medicinal Chemistry

1 answer 36 views

How can Fourier-transform infrared spectroscopy (FTIR) be used to characterize the chemical structure of polymers? Provide an example of a specific polymer and discuss the relevant spectral features that would be observed in an FTIR spectrum.

asked Feb 5 in Polymer Chemistry

1 answer 145 views

Given the chemical equation: N2 + 3H2 <-> 2NH3 and an initial concentration of N2 as 0.1M, H2 as 0.2M, and NH3 as 0. Calculate the equilibrium concentrations of each component at 298K if the reaction is exothermic and the pressure is increased. (Hint: Use Le Chatelier's principle to determine the direction of the shift and then use an ICE table to calculate the concentrations at equilibrium)

answered Feb 4 in Chemical reactions

1 answer 68 views

How can the concentration of a particular substance in a given sample be determined using colorimetry, and what are the factors that affect the accuracy of the measurement?

answered Jan 29 in Analytical Chemistry

1 answer 69 views

Calculate the heat of formation of a water molecule from its elements, hydrogen and oxygen gas, given that the standard enthalpy of formation of hydrogen gas is -285.8 kJ/mol and the standard enthalpy of formation of oxygen gas is 0 kJ/mol. Show all your work and explain what the resulting sign of the enthalpy of formation means in terms of the stability of the water molecule.

answered Jan 23 in Chemical bonding

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