Recent activity by CharleneLemu

1 answer 12 views

What practical applications can you suggest to explain the reaction between hydrochloric acid and sodium bicarbonate to a non-chemist? Provide specific examples and explain the chemical concepts involved in the reaction.

asked Feb 22 in Chemical education

1 answer 26 views

What is the optimum temperature and time required for the Preparation of p-nitroaniline from aniline and nitric acid, and how can the purity of the final product be improved?

asked Feb 22 in Chemical synthesis

1 answer 28 views

How does the photochemical behavior of transition metal complexes differ from that of organic molecules, and how might these differences be utilized in developing new materials or processes?

asked Feb 22 in PhotoChemistry

1 answer 36 views

What are the optimized reaction conditions for the synthesis of polypropylene from propylene monomer, and how do they affect the yield and quality of the resulting polymer?

asked Feb 22 in Chemical synthesis

1 answer 22 views

What is the enthalpy of ionization of Hydrogen atom in the gas phase, given that its first ionization energy is 1312 kilojoules per mole and its second ionization energy is 2372.3 kilojoules per mole?

answered Feb 20 in ThermoChemistry

1 answer 30 views

What is the effect of temperature on the surface tension of water and why is it important in understanding the behavior of liquids in various applications?

answered Feb 20 in Surface Chemistry

1 answer 32 views

What is the synthesis mechanism and chemical properties of pyridine?

answered Feb 14 in Organic Chemistry

1 answer 30 views

What are the factors that affect the pharmacokinetics of a drug in the human body, and how can we quantify the drug's bioavailability, distribution, metabolism, and elimination?

asked Feb 14 in Medicinal Chemistry

1 answer 58 views

How does the ligand substitution affect the photochemical properties of transition metal complexes? Provide a detailed explanation using the example of [Fe(CN)6]⁴¯ complex.

answered Feb 13 in PhotoChemistry

1 answer 61 views

How does increasing pressure affect the rate of the reaction between hydrogen gas and iodine gas to form hydrogen iodide gas, and can this relationship be explained by applying the collision theory?

answered Feb 13 in Chemical kinetics

1 answer 81 views

How can we design a drug that specifically targets and inhibits the activity of the angiotensin-converting enzyme (ACE) to regulate blood pressure levels in patients with hypertension?

asked Feb 12 in Medicinal Chemistry

1 answer 56 views

How do chemical modifications to histone proteins affect DNA replication and repair processes in eukaryotic cells?

asked Feb 12 in BioChemistry

1 answer 58 views

How can the stability of an emulsion be improved using a specific surfactant?

asked Feb 10 in Surface Chemistry

1 answer 25 views

How can the properties of liquid crystals be optimized for display technology, considering factors such as viewing angle, color accuracy, response time, and energy efficiency?

asked Feb 10 in Materials Chemistry

1 answer 42 views

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

answered Feb 5 in Medicinal Chemistry

1 answer 81 views

Calculate the standard enthalpy change (in kJ/mol) for the dissolution of 3.50 g of potassium hydroxide (KOH) in 250.0 mL of water at 25°C, given that the molar heat of solution of KOH is -57.61 kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 67 views

Calculate the change in entropy when 1 mole of methane gas (CH4) is burned completely in oxygen gas (O2) at constant pressure and 298 K.

asked Jan 23 in Chemical thermodynamics

1 answer 67 views

Calculate the change in enthalpy for the combustion of 2 moles of methane gas (CH4) at a constant pressure of 1 atmosphere and a temperature of 298 K. Given the standard enthalpy of formation for methane is -74.81 kJ/mol.

answered Jan 23 in Physical Chemistry

1 answer 69 views

Please evaluate the Hawthorne effect.

asked Jan 20 in Psychology

1 answer 56 views

What is the Foot-In-The-Door Technique?

asked Jan 20 in Psychology

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