Answers by GustavoPonti

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How does the rate of a chemical reaction affect the potential for a hazardous event to occur, and what measures can be taken to mitigate the risk and ensure reaction safety?

answered 3 days ago in Chemical kinetics

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21 views

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

answered 4 days ago in Polymer Chemistry

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26 views

What are the key physical and chemical properties of polymers that make them suitable for 3D printing? Which specific polymers have the best properties for 3D printing and why?

answered 5 days ago in Materials Chemistry

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How does the choice of exchange-correlation functional impact the accuracy of Density Functional Theory (DFT) calculations for the catalytic hydrodeoxygenation reaction of phenol on ruthenium catalysts?

answered 6 days ago in Computational Chemistry

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37 views

What is the impact of the chirality of a molecule on its photochemical properties? Provide an example of a chiral molecule and explain how its photochemical behavior differs from its achiral counterpart.

answered 6 days ago in PhotoChemistry

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How does the drug metformin work in treating type 2 diabetes and what specific biochemical pathways does it interact with?

answered Feb 13 in Medicinal Chemistry

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42 views

How does exposure to particulate matter in polluted air affect human respiratory health in terms of lung function and risk of respiratory diseases such as asthma and lung cancer?

answered Feb 13 in Environmental Chemistry

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35 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

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35 views

How can inadequate training for chemistry teachers affect the quality of education in student learning and performance in chemistry?

answered Feb 6 in Chemical education

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How can chemists modify the chemical structure of existing antibiotics to overcome drug-resistant bacterial infections like MRSA (Methicillin-Resistant Staphylococcus Aureus)?

answered Feb 6 in Medicinal Chemistry

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44 views

Here is an example question:How do the photochemical properties of [Fe(CN)6]4- and [Ru(bpy)3]2+ differ? Provide an explanation based on the electronic configurations and coordination geometries of the two complexes.

answered Feb 4 in PhotoChemistry

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50 views

Determine the enthalpy change of precipitation for the reaction between 50 mL of 0.1 M NaOH and 50 mL of 0.1 M CuSO4, given that the final solution has a temperature of 25°C and the specific heat capacity of the solution is 4.18 J/g·°C.

answered Feb 4 in ThermoChemistry

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54 views

Calculate the standard enthalpy change for the vaporization reaction of 2.00 moles of water at 100°C and 1 atm pressure, given that the molar enthalpy of vaporization of water is 40.7 kJ/mol.

answered Feb 3 in Chemical thermodynamics

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31 views

How does changing the molecular weight of polyethylene affect its mechanical properties, specifically in terms of its use as a biomaterial for joint replacements?

answered Feb 3 in Materials Chemistry

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75 views

What is the concentration of lead in a water sample collected from a nearby river using atomic absorption spectroscopy?

answered Jan 31 in Analytical Chemistry

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106 views

What is the composition of an unknown mixture contained in a gas sample obtained from an industrial plant? Use gas chromatography to separate and analyze the mixture, and determine the percentage of each component present in the sample.

answered Jan 30 in Analytical Chemistry

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58 views

Using X-ray diffraction, analyze the crystal structure and determine the chemical composition of an unknown mineral sample provided.

answered Jan 30 in Analytical Chemistry

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67 views

Calculate the Gibbs free energy change for the electrochemical reaction: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) Given the standard reduction potentials: E°(Cu2+/Cu) = 0.34 V E°(Zn2+/Zn) = -0.76 V Assuming standard conditions of 1 M concentration and 1 atm pressure at 25°C.

answered Jan 23 in ElectroChemistry

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92 views

A chemistry student is given the following thermochemical equations: Equation 1: H2 (g) + 1/2O2 (g) → H2O(l) ΔH1 = -285.8 kJ/mol Equation 2: C(s) + O2 (g) → CO2 (g) ΔH2 = -393.5 kJ/mol Equation 3: 2H2 (g) + O2 (g) → 2H2O(l) ΔH3 = -571.6 kJ/mol Using Hess's Law, calculate the enthalpy change for the following reaction: C(s) + 2H2 (g) → CH4 (g)

answered Jan 22 in ThermoChemistry

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91 views

What is the mechanism and product produced when 2-methylbut-2-ene undergoes a Wagner-Meerwein rearrangement reaction in the presence of concentrated sulfuric acid?

answered Jan 21 in Organic Chemistry

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