Recent activity by ArnulfoHelly

1 answer 31 views

How does the pharmacodynamics of an analgesic drug change in the presence of an enzyme inhibitor?

1 answer 25 views

What specific wavelength of light is most effective in the photochemical degradation of the pollutant benzene in the environment, and how does varying the intensity of the light affect the rate of degradation?

answered Feb 21 in PhotoChemistry

1 answer 33 views

What are the most effective chemical treatments for removing heavy metals and organic contaminants from industrial wastewater and designing a system that incorporates these treatments while minimizing energy consumption and cost?

asked Feb 21 in Chemical engineering

1 answer 31 views

What is the impact of different reactant orientations on the reaction rate between X and Y molecules in a gas-phase reaction under controlled temperature and pressure conditions?

asked Feb 20 in Chemical kinetics

1 answer 29 views

How does the choice of exchange-correlation functional influence the accuracy of density functional theory calculations of surface properties in catalytic systems?

answered Feb 18 in Computational Chemistry

1 answer 26 views

What is the balanced chemical equation for the reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)? Calculate the number of moles of HCl if 25 ml of 0.1 M NaOH is used for the reaction, assuming the reaction goes to completion.

asked Feb 17 in Chemical reactions

1 answer 32 views

What is the role of pyridoxal phosphate (PLP) in the transamination of amino acids during their metabolism and biosynthesis?

answered Feb 14 in BioChemistry

1 answer 36 views

Which of the following compounds, NaCl or NaOH, is expected to have a higher reactivity and why, based on their electronic configuration?

answered Feb 13 in Inorganic Chemistry

1 answer 87 views

What are the metabolic pathways involved in the biosynthesis of the non-essential amino acids in humans, and how do these pathways differ from those involved in the biosynthesis of essential amino acids?

answered Feb 13 in BioChemistry

1 answer 65 views

What is the mechanism of free radical polymerization of vinyl chloride and how does the reaction pathway lead to the formation of PVC with high molecular weight?

answered Feb 13 in Organic Chemistry

1 answer 32 views

How to design an optimized process for the production of surfactants that minimizes environmental impact and also reduces production costs?

asked Feb 12 in Chemical engineering

1 answer 77 views

What is the predicted color of copper(II) sulfate pentahydrate ([Cu(H2O)4]SO4•H2O) based on its electronic configuration?

answered Feb 12 in Inorganic Chemistry

1 answer 58 views

How can the synthesis and purification of essential oils through steam distillation be optimized to develop a cost-effective process for the production of fragrances in the chemical industry?

answered Feb 11 in Chemical engineering

1 answer 36 views

How can liquid crystals be designed and synthesized to optimize their optical and electro-optical properties for use in high-resolution display technology?

asked Feb 5 in Materials Chemistry

1 answer 35 views

How can chemistry students overcome the challenge of limited availability of chemistry-related internships and job opportunities to gain relevant practical experience and enhance their chances of employability?

asked Feb 5 in Chemical education

1 answer 32 views

Design a process for the purification of a sample of crude oil. Describe the steps and the equipment needed for the process. Also, provide a brief explanation of the principles behind each step.

answered Feb 4 in Chemical engineering

1 answer 67 views

Calculate the enthalpy change for the following reaction using Hess's Law: 2SO3(g) → 2SO2(g) + O2(g)Given the following enthalpy changes:2SO3(g) + ΔH1 → 2SO2(g) + O2(g); ΔH1 = 198.2 kJ/molSO2(g) + 1/2O2(g) + ΔH2 → SO3(g); ΔH2 = -98.9 kJ/mol

answered Jan 23 in Chemical reactions

1 answer 72 views

Calculate the change in Gibbs free energy for the electrochemical reaction, given the standard reduction potentials of the reactants and products:Cu2+ (aq) + 2e- → Cu (s)E° = +0.34 VFe2+ (aq) + 2e- → Fe (s)E° = -0.44 V

answered Jan 23 in ElectroChemistry

1 answer 91 views

What is the IUPAC name of a cycloalkane compound that contains 7 carbon atoms?

answered Jan 21 in Organic Chemistry

1 answer 39 views

Who funded the Ben Clark Foundation report on the mental health of Fly-in-fly-out workers?

asked Jan 20 in Psychology

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