Recent activity by AngeliaDewey

1 answer 35 views

What is the most efficient catalyst for the synthesis of polyacrylonitrile from acrylonitrile monomer?

asked Feb 21 in Chemical synthesis

1 answer 28 views

What is the effect of varying concentrations of water as a solvent on the reaction rate of a given chemical reaction?

asked Feb 20 in Chemical kinetics

1 answer 30 views

What is the effect of increasing concentration of product X on the reaction rate of the chemical reaction A + B -> X?

asked Feb 19 in Chemical kinetics

1 answer 40 views

What is the coordination environment of the metal center in the active site of the metalloenzyme carbonic anhydrase and how does this environment contribute to the enzyme's function in the reversible hydration of carbon dioxide?

answered Feb 19 in Coordination Chemistry

1 answer 32 views

What is the relationship between the conductivity of inorganic compounds and their chemical structure?

answered Feb 19 in Inorganic Chemistry

1 answer 26 views

How does the chemical composition of natural products affect their pharmacological activities for medicinal use? Provide examples to support your answer.

answered Feb 18 in Medicinal Chemistry

1 answer 34 views

How does the carbon footprint of different industries (such as transportation, electricity generation, and agriculture) affect the concentration of greenhouse gases in the atmosphere and contribute to climate change?

asked Feb 18 in Environmental Chemistry

1 answer 65 views

What are the hybrid orbitals involved in the formation of a carbon-oxygen double bond in methanal (formaldehyde)?

asked Feb 13 in Chemical bonding

1 answer 59 views

What is the role of hydrogen bonding in maintaining the stability of the double helix structure of DNA?

asked Feb 13 in BioChemistry

1 answer 64 views

How can we design a new drug for cancer treatment that targets specific cancer cells without affecting healthy cells, by utilizing the principles of medicinal chemistry?

answered Feb 12 in Medicinal Chemistry

1 answer 42 views

What is the impact of Chlorofluorocarbons (CFCs) on the ozone layer in different environmental conditions and how does this vary based on factors such as temperature and UV radiation levels?

answered Feb 12 in Environmental Chemistry

1 answer 38 views

How can chemistry students overcome limited opportunities for hands-on experimentation and still gain a deep understanding of laboratory techniques and chemical reactions?

asked Feb 5 in Chemical education

1 answer 118 views

Design a cost-effective and environmentally sustainable process for the production of biofuels from lignocellulosic materials, integrating pre-treatment, enzymatic hydrolysis and fermentation steps, while optimizing yield, energy efficiency, and minimizing waste generation.

asked Feb 3 in Chemical engineering

1 answer 46 views

Consider the following chemical equation: 2 SO2(g) + O2(g) ⇌ 2 SO3(g)At equilibrium, the concentration of SO2 was found to be 0.10 M, the concentration of O2 was found to be 0.20 M, and the concentration of SO3 was found to be 0.30 M. What is the value of the equilibrium constant (Kc) for this reaction at the given temperature?

asked Feb 3 in Chemical equilibrium

1 answer 14 views

Calculate the standard enthalpy change (∆H°) for the neutralization reaction of 50.0 mL of 0.100 M HCl with 75.0 mL of 0.0750 M NaOH at a constant pressure of 1 atm and a temperature of 25°C.

asked Feb 3 in Chemical thermodynamics

1 answer 102 views

Here's a question for a chemistry student to solve:How can we connect the principles of acid-base chemistry to everyday scenarios such as cleaning agents and food preservatives?

answered Jan 30 in Chemical education

1 answer 126 views

What is the concentration of an HCl solution if 25.0 ml of the solution requires 35.0 ml of 0.10 M NaOH solution to reach the endpoint of titration?

asked Jan 30 in Analytical Chemistry

1 answer 68 views

How can capillary electrophoresis be used to analyze the composition of a mixture containing cations and anions? Develop a method for separating and quantifying the components of the mixture using capillary electrophoresis, and interpret the resulting data to determine the identities and concentrations of each component in the sample.

answered Jan 29 in Analytical Chemistry

1 answer 69 views

Calculate the irreversible work done by a gas expanding adiabatically from an initial volume of 1 L to a final volume of 5 L against a constant external pressure of 2 atm, assuming that the gas is initially at a temperature of 300 K and that its final temperature is 400 K.

asked Jan 23 in Physical Chemistry

1 answer 58 views

Calculate the Gibbs free energy change for the combustion of ethane gas in oxygen gas to form carbon dioxide gas and water vapor at a temperature of 25 °C and a pressure of 1 atm, given the following thermodynamic data:Reaction: C2H6(g) + 3.5O2(g) → 2CO2(g) + 3H2O(g)ΔH°rxn = -1560.8 kJ/molΔS°rxn = -283.3 J/K•molUsing the above information, what is the value of the Gibbs free energy change at standard conditions?

asked Jan 23 in Chemical thermodynamics

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