Recent activity by LeonelPiddin

1 answer 25 views

How can we use quantum chemistry calculations to predict the selectivity of a catalyst towards a specific reaction pathway?

asked Feb 14 in Quantum Chemistry

1 answer 39 views

How can the optical properties of glasses be improved for use in advanced applications such as fiber optic communication, laser technology, and medical equipment?

answered Feb 10 in Materials Chemistry

1 answer 26 views

How can fertilizer management practices be improved to minimize environmental pollution while increasing crop production in sustainable agriculture?

answered Feb 6 in Environmental Chemistry

1 answer 62 views

Determine the entropy change for the combustion of methane gas (CH4) at constant pressure and 298 K. Given the standard molar entropy values are: S°(CH4) = 186 J/mol.K, S°(O2) = 205 J/mol.K, S°(CO2) = 214 J/mol.K and S°(H2O) = 188 J/mol.K.

answered Feb 4 in Chemical thermodynamics

1 answer 42 views

How does changing the molecular geometry affect the electronic excited states and optical properties of a molecule?

asked Feb 3 in Quantum Chemistry

1 answer 67 views

What is the concentration of lead ions in a water sample collected from a commercial battery manufacturing plant using voltammetry?

asked Jan 31 in Analytical Chemistry

1 answer 47 views

Calculate the corrosion rate of a steel rod when it is placed in a galvanic coupling with a copper strip at 25°C. The initial weight of the steel rod was 28.6 g and it lost 0.48 g in weight after 24 hours of exposure. The area of the steel rod in contact with the electrolyte solution is 3.14 cm² and the electrode potential of the copper strip is +0.34V while the electrode potential of the steel rod is -0.44V. Using Faraday’s law of electrolysis, determine the corrosion rate of the steel rod in mmpy (mils per year).

asked Jan 23 in ElectroChemistry

1 answer 59 views

What is the difference between single-blind and double-blind studies?

asked Jan 15 in Psychology

1 answer 54 views

What is the cognitive-affective stress model?

answered Jan 13 in Psychology

1 answer 37 views

Where are more of an insect's internal organs kept?

answered Jan 8 in Science

1 answer 37 views

What state of matter takes neither the shape nor the volume of its container?

asked Jan 7 in Science

1 answer 58 views

What is composed of a calcium cation and a nitrate anion?

asked Jan 6 in Science

1 answer 37 views

Meats and dairy products link to photosynthesis because the animals were fed what?

asked Dec 31, 2024 in Science

1 answer 34 views

In the first beaker, distilled water does not conduct a current because water is a what?

answered Dec 31, 2024 in Science

1 answer 52 views

A change in temperature with distance is called a what?

answered Dec 30, 2024 in Science

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