Recent activity by BrianCherry

1 answer 27 views

What is the pH of a solution if the pH meter reading is 7.5 and the temperature of the solution is 25°C?

asked 5 days ago in Analytical Chemistry

1 answer 29 views

What is the most effective chemical treatment method for removing arsenic from contaminated soil in order to restore the site to a safe and healthy state?

answered 6 days ago in Environmental Chemistry

1 answer 23 views

What is the molecular geometry and bond angle of CO2?

asked Feb 21 in Quantum Chemistry

1 answer 26 views

What is the mechanism behind the ability of detergents to remove dirt and stains from clothes at the molecular level?

asked Feb 20 in Surface Chemistry

1 answer 29 views

How does the formation of surface oxides lead to passivation and prevent corrosion in metals exposed to acidic environments?

answered Feb 20 in Surface Chemistry

1 answer 32 views

What is the effect of the degree of crosslinking on the water absorption capacity of polymer-based superabsorbent materials?

asked Feb 19 in Polymer Chemistry

1 answer 36 views

How does the concentration of reactants and catalyst affect the selectivity of the reaction of hydrogenation of aromatic compounds, specifically the conversion of 1,3-butadiene to butene isomers?

asked Feb 19 in Chemical kinetics

1 answer 34 views

How does the absorption of light by molecules affect their electronic structure and reactivity in photocatalytic processes?

answered Feb 17 in Quantum Chemistry

1 answer 24 views

How can we use quantum chemistry to predict the selectivity of substitution reactions in aromatic compounds?

answered Feb 14 in Quantum Chemistry

1 answer 31 views

What is the difference between geometrical isomerism and optical isomerism in coordination compounds, and how do you identify them using spectroscopic methods?

answered Feb 13 in Coordination Chemistry

1 answer 34 views

How can the photochemical properties of luminescent materials be optimized to enhance their efficiency in light-emitting devices?

asked Feb 10 in PhotoChemistry

1 answer 47 views

How can the mechanical properties of a polymer-based smart material be manipulated by changing its chemical composition and processing conditions?

answered Feb 10 in Polymer Chemistry

1 answer 37 views

How can the electronic and magnetic properties of molecular magnets be predicted using quantum chemistry? Specifically, evaluate the impact of factors such as spin, electronic structure, and magnetic interactions on the properties of these molecules. Provide examples of molecular magnets and explain their potential applications in the field of data storage and spintronics.

answered Feb 7 in Quantum Chemistry

1 answer 34 views

How can medicinal chemists utilize structure-activity relationship (SAR) studies to design new small molecule drugs that selectively target specific immune cells involved in autoimmune diseases, while minimizing off-target effects and toxicity?

asked Feb 5 in Medicinal Chemistry

1 answer 60 views

Here is a possible question for the student to solve:How does the photochemical behavior of metal complexes depend on the nature of ligands and metal centers, and how can this information be used to design new photoactive materials for various applications, such as light-driven catalysts, sensors, or photovoltaic devices?

asked Feb 4 in PhotoChemistry

1 answer 56 views

Design a retrosynthetic pathway to synthesize ibuprofen starting from methylcyclohexane. Show all necessary reagents and the key steps involved in the synthesis.

answered Feb 4 in Organic Chemistry

1 answer 39 views

Calculate the standard free energy change, ΔG°, for the following redox reaction if the standard reduction potential of Ag⁺/Ag is +0.80 V and the standard reduction potential of Cu²⁺/Cu is +0.34 V:Ag⁺(aq) + Cu(s) → Ag(s) + Cu²⁺(aq)

answered Feb 3 in Chemical thermodynamics

1 answer 43 views

Calculate the standard enthalpy change for the precipitation reaction: AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)given that the standard enthalpy of formation for AgCl(s) is -127.0 kJ/mol, and for NaNO3(aq) is -467.14 kJ/mol. The molar enthalpy of solution of NaCl and AgNO3 are -3.9 kJ/mol and -19.9 kJ/mol respectively.

answered Feb 3 in Chemical thermodynamics

1 answer 53 views

Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) into glucose (C6H12O6) and fructose (C6H12O6), given the enthalpy change of hydrolysis for glucose and fructose are -2801 and -2802 kJ/mol respectively.

asked Jan 23 in ThermoChemistry

1 answer 54 views

What is the product formed when ethanol (CH3CH2OH) reacts with carboxylic acid (RCOOH) in the presence of a mineral acid catalyst? Write the mechanism of the reaction and name the functional group present in the product.

answered Jan 21 in Organic Chemistry

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