Recent activity by MaxwellDuff3

1 answer 29 views

How does the pH level of a solution affect the reaction rate between sodium thiosulfate and hydrochloric acid?

asked Feb 22 in Chemical kinetics

1 answer 39 views

How does the molecular weight and branching of a polymer affect its suitability for use in 3D printing, and how can these properties be optimized for improved printing quality and mechanical strength of the printed object?

asked Feb 21 in Materials Chemistry

1 answer 33 views

How does the intensity of the infrared spectrum produced by a molecule change when the molecule undergoes a bond vibration?

answered Feb 20 in Physical Chemistry

1 answer 40 views

How does the concentration of catalyst affect the rate of a catalytic reaction?

answered Feb 18 in Physical Chemistry

1 answer 28 views

What is the bond energy of a carbon-carbon bond in ethane (C2H6) and what is the energy change when two ethane molecules react to form one butane (C4H10) molecule?

asked Feb 18 in Chemical reactions

1 answer 29 views

How does the addition of titanium affect the mechanical properties of nickel-based superalloys for use in high-temperature aerospace applications?

asked Feb 17 in Materials Chemistry

1 answer 31 views

How does the addition of an electrolyte affect the stability of a colloidal dispersion? Provide a detailed explanation of the underlying principles and the factors that influence the stability of a colloidal dispersion in the presence of an electrolyte.

answered Feb 17 in Surface Chemistry

1 answer 41 views

How do the temperature and pressure affect the outcome of the Monte Carlo simulations of gas-phase reactions? Can you provide a quantitative analysis of the effects of varying temperature and pressure on the reaction rate and yield?

answered Feb 17 in Computational Chemistry

1 answer 49 views

What are the electronic and optical properties of Graphene and other 2D materials, and how do these properties compare with those of traditional 3D materials? Provide specific examples and insights gained from quantum chemical calculations.

answered Feb 13 in Quantum Chemistry

1 answer 28 views

How can the optical properties of a conjugated polymer be accurately calculated using quantum chemistry methods?

asked Feb 10 in Quantum Chemistry

1 answer 38 views

How can the coordination compound [Co(NH3)6]Cl3 be synthesized and characterized using various analytical techniques such as UV-Vis spectroscopy, IR spectroscopy, and NMR spectroscopy?

answered Feb 6 in Coordination Chemistry

1 answer 49 views

How can the chemical and physical properties of natural compounds found in plants be utilized for the development of effective treatments for gastrointestinal diseases such as inflammatory bowel disease and gastroesophageal reflux disease?

asked Feb 6 in Medicinal Chemistry

1 answer 34 views

How can chemistry teachers provide better support for students with learning disabilities in order to help them understand complex chemical concepts and perform well in exams?

answered Feb 5 in Chemical education

1 answer 38 views

How can one predict the stability of inorganic compounds and what factors affect their stability?

asked Feb 5 in Inorganic Chemistry

1 answer 115 views

How do changes in pH affect the stability of protein-protein interactions and complexes? Provide a detailed explanation with experimental evidence.

answered Jan 31 in BioChemistry

1 answer 114 views

In an experiment, a student identified an unknown organic compound using mass spectrometry analysis. The mass spectrum showed an M+ peak at m/z 86 and a base peak at m/z 43. Using this information, can you determine the molecular formula of the unknown compound?

asked Jan 30 in Analytical Chemistry

1 answer 68 views

Calculate the enthalpy of combustion of methane if 2.56 g of methane was burnt completely in a bomb calorimeter containing excess oxygen, causing a temperature rise of 4.58 °C in the calorimeter, which has a heat capacity of 1.26 kJ/°C. The balanced chemical equation for the combustion of methane is as follows: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) + energy.

asked Jan 23 in ThermoChemistry

1 answer 57 views

Calculate the enthalpy of adsorption of hydrogen gas on activated carbon if 2 grams of activated carbon absorb 0.025 moles of hydrogen gas at 298 K and the pressure of the system is 1 atm. The molar enthalpy of hydrogen gas is -285.8 kJ/mol at constant pressure.

asked Jan 23 in ThermoChemistry

1 answer 33 views

A chemistry student needs to determine the pH of an unknown solution using a pH meter. The student is given the following equipment: pH meter, reference electrode, and a container for the solution. The student should describe the steps needed to measure the pH of the solution and explain the significance of the obtained pH value.

asked Jan 22 in Analytical Chemistry

1 answer 67 views

What is the oxidation state of manganese in KMnO4?

asked Jan 21 in Inorganic Chemistry

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