Recent activity by AdelaideDunn

1 answer 26 views

What is the optimal catalyst concentration and temperature required for the synthesis of high molecular weight polystyrene using bulk polymerization?

answered 5 days ago in Chemical synthesis

1 answer 24 views

What is the most efficient and cost-effective method for synthesizing cadmium selenide (CdSe) quantum dots with controlled size and shape using green chemistry principles?

asked 5 days ago in Materials Chemistry

1 answer 8 views

How does the molecular weight of a polymer affect its rheological properties in the molten state?

asked 5 days ago in Polymer Chemistry

1 answer 32 views

What is the molecular geometry and bond angles of carbon dioxide?

answered 6 days ago in Quantum Chemistry

1 answer 26 views

How does the coordination chemistry of metal ions in metalloenzymes and metalloproteins play a role in enzymatic activity? Provide specific examples and discuss the importance of metal ion specificity in catalysis.

answered Feb 19 in Coordination Chemistry

1 answer 6 views

What is the concentration of a specific pesticide residue (e.g. chlorpyrifos) in a certain type of fruit (e.g. apples) that poses a potential health risk to humans, and what environmental factors may influence the levels of this residue in the fruit?

asked Feb 18 in Environmental Chemistry

1 answer 24 views

How does the binding energy of a transition metal complex change as the metal's oxidation state increases, as determined by ab initio calculations?

answered Feb 17 in Computational Chemistry

1 answer 31 views

What is the balanced chemical equation for the double replacement reaction between sodium hydroxide and hydrochloric acid, and what are the products that form?

answered Feb 17 in Chemical reactions

1 answer 7 views

What factors influence the solubility of a substance in a solvent and how can the solubility of a substance be determined experimentally?

answered Feb 14 in Chemical bonding

1 answer 29 views

How can the design of a chemical storage and transportation system be optimized to minimize the risk of chemical spills and accidents while ensuring efficient and cost-effective operation?

answered Feb 6 in Chemical engineering

1 answer 11 views

How can one design a system for the sustainable production of surfactants with high yield and minimal waste?

answered Feb 5 in Chemical engineering

1 answer 34 views

Calculate the standard enthalpy change for the reaction of [Co(H2O)6]2+(aq) with 2 Cl-(aq) to form [CoCl4]2-(aq) and 6 H2O(l) at a temperature of 298 K. Given the following thermodynamic data:[Co(H2O)6]2+(aq) + 4 Cl-(aq) → [CoCl4]2-(aq) + 6 H2O(l) ΔH°= -98.7 kJ mol-1[Co(H2O)6]2+(aq) + 2 Cl-(aq) → [CoCl4]2-(aq) + 4 H2O(l) ΔH°= -65.5 kJ mol-1Assume that the enthalpy of hydration for Cl- (aq) is -364 kJ mol-1.

asked Feb 3 in Chemical thermodynamics

1 answer 98 views

What is the probability of the formation of HCl from H2 and Cl2 gases in a gas-phase reaction at a temperature of 298 K and a pressure of 1 atm, using Monte Carlo simulations?

asked Jan 31 in Computational Chemistry

1 answer 82 views

How can a chemical engineer design a system for the safe storage and transportation of hazardous chemicals, taking into account factors such as chemical compatibility, transportation regulations, and emergency response procedures?

asked Jan 30 in Chemical engineering

1 answer 66 views

How can chemistry educators increase student interest in the subject and motivate more students to pursue careers in chemistry?

answered Jan 30 in Chemical education

1 answer 56 views

Calculate the enthalpy of adsorption of hydrogen gas on platinum at 298 K, given that the maximum coverage of hydrogen on the platinum surface is 0.5 monolayers and the equilibrium constant for the process at 298 K is 2.5 x 10^3. Assume that the adsorption process is exothermic and that the standard enthalpy of formation of water is -286 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 30 views

How did Phineas Gage's injury affect his personality?

answered Jan 20 in Psychology

1 answer 34 views

What is research philosophy?

answered Jan 16 in Psychology

1 answer 13 views

What is heuristic value in theory evaluation?

answered Jan 16 in Psychology

1 answer 25 views

Why is it important to consider the impact of co-occurring mental health conditions when evaluating eating disorders?

answered Jan 16 in Psychology

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